docs: Fix more capitalization issues.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

.github/pull_request_template.md

@@ -1,10 +1,10 @@
 <!-- What's this PR for?  (Just a link to an issue is fine.) -->
 
 
-**Testing Plan:** <!-- How have you tested? -->
+**Testing plan:** <!-- How have you tested? -->
 
 
-**GIFs or Screenshots:** <!-- If a UI change.  See:
+**GIFs or screenshots:** <!-- If a UI change.  See:
   https://zulip.readthedocs.io/en/latest/tutorials/screenshot-and-gif-software.html
   -->
 

.github/workflows/cancel-previous-runs.yml

@@ -1,4 +1,4 @@
-name: Cancel Previous Runs
+name: Cancel previous runs
 on: [push, pull_request]
 
 defaults:
@@ -7,7 +7,7 @@ defaults:
 
 jobs:
   cancel:
-    name: Cancel Previous Runs
+    name: Cancel previous runs
     runs-on: ubuntu-latest
     timeout-minutes: 3
 

.github/workflows/codeql-analysis.yml

@@ -1,4 +1,4 @@
-name: "Code Scanning"
+name: "Code scanning"
 
 on: [push, pull_request]
 

.github/workflows/production-suite.yml

@@ -1,4 +1,4 @@
-name: Zulip Production Suite
+name: Zulip production suite
 
 on:
   push:
@@ -30,7 +30,7 @@ defaults:
 
 jobs:
   production_build:
-    name: Bionic Production Build
+    name: Bionic production build
     runs-on: ubuntu-latest
 
     # This docker image was created by a generated Dockerfile at:
@@ -104,12 +104,12 @@ jobs:
       matrix:
         include:
           - docker_image: mepriyank/actions:bionic
-            name: Bionic Production Install
+            name: Bionic production install
             is_bionic: true
             os: bionic
 
           - docker_image: mepriyank/actions:focal
-            name: Focal Production Install
+            name: Focal production install
             is_focal: true
             os: focal
 

.github/workflows/zulip-ci.yml

@@ -37,7 +37,7 @@ jobs:
       # GitHub Actions sets HOME to /github/home which causes
       # problem later in provison and frontend test that runs
       # tools/setup/postgres-init-dev-db because of the .pgpass
-      # location. Postgresql (psql) expects .pgpass to be at
+      # location. PostgreSQL (psql) expects .pgpass to be at
       # /home/github/.pgpass and setting home to `/home/github/`
       # ensures it written there because we write it to ~/.pgpass.
       HOME: /home/github/
@@ -142,7 +142,7 @@ jobs:
           # see https://community.codecov.io/t/http-400-while-uploading-to-s3-with-python-codecov-from-travis/1428/7
           pip install codecov && codecov || echo "Error in uploading coverage reports to codecov.io."
 
-      - name: Store puppeteer artifacts
+      - name: Store Puppeteer artifacts
         if: ${{ matrix.include_frontend_tests }}
         uses: actions/upload-artifact@v2
         with:
@@ -153,6 +153,6 @@ jobs:
         if: ${{ matrix.is_focal }}
         run: mispipe "tools/ci/setup-backend" ts
       # TODO: We need to port the notify_failure step from CircleCI
-      # config, however, it might be the case that GitHub Notifications
+      # config, however, it might be the case that GitHub notifications
-      # make this unnesscary. More details on settings to configure it:
+      # make this unnecessary. More details on settings to configure it:
       # https://help.github.com/en/github/managing-subscriptions-and-notifications-on-github/configuring-notifications#github-actions-notification-options

Dockerfile-postgresql

@@ -5,7 +5,7 @@
 # the on-disk data in volumes. So the base image can not currently be upgraded
 # without users needing a manual pgdump and restore.
 
-# Install hunspell, zulip stop words, and run zulip database
+# Install hunspell, Zulip stop words, and run Zulip database
 # init.
 FROM groonga/pgroonga:latest-alpine-10-slim
 RUN apk add -U --no-cache hunspell-en

README.md

@@ -9,7 +9,7 @@ over 500 contributors merging over 500 commits a month, Zulip is also the
 largest and fastest growing open source group chat project.
 
 [![CircleCI branch](https://img.shields.io/circleci/project/github/zulip/zulip/master.svg)](https://circleci.com/gh/zulip/zulip/tree/master)
-[![Coverage Status](https://img.shields.io/codecov/c/github/zulip/zulip/master.svg)](https://codecov.io/gh/zulip/zulip/branch/master)
+[![coverage status](https://img.shields.io/codecov/c/github/zulip/zulip/master.svg)](https://codecov.io/gh/zulip/zulip/branch/master)
 [![Mypy coverage](https://img.shields.io/badge/mypy-100%25-green.svg)][mypy-coverage]
 [![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg)](https://github.com/prettier/prettier)
 [![GitHub release](https://img.shields.io/github/release/zulip/zulip.svg)](https://github.com/zulip/zulip/releases/latest)

SECURITY.md

@@ -1,9 +1,9 @@
-# Security Policy
+# Security policy
 
 Security announcements are sent to zulip-announce@googlegroups.com,
 so you should subscribe if you are running Zulip in production.
 
-## Reporting a Vulnerability
+## Reporting a vulnerability
 
 We love responsible reports of (potential) security issues in Zulip,
 whether in the latest release or our development branch.
@@ -18,7 +18,7 @@ Our [security
 model](https://zulip.readthedocs.io/en/latest/production/security-model.html)
 document may be a helpful resource.
 
-## Supported Versions
+## Supported versions
 
 Zulip provides security support for the latest major release, in the
 form of minor security/maintenance releases.

analytics/lib/counts.py

@@ -598,7 +598,7 @@ def get_count_stats(realm: Optional[Realm]=None) -> Dict[str, CountStat]:
     ## CountStat declarations ##
 
     count_stats_ = [
-        # Messages Sent stats
+        # Messages sent stats
         # Stats that count the number of messages sent in various ways.
         # These are also the set of stats that read from the Message table.
 
@@ -617,7 +617,7 @@ def get_count_stats(realm: Optional[Realm]=None) -> Dict[str, CountStat]:
                   sql_data_collector(StreamCount, count_message_by_stream_query(realm),
                                      (UserProfile, 'is_bot')), CountStat.DAY),
 
-        # Number of Users stats
+        # Number of users stats
         # Stats that count the number of active users in the UserProfile.is_active sense.
 
         # 'active_users_audit:is_bot:day' is the canonical record of which users were
@@ -658,7 +658,7 @@ def get_count_stats(realm: Optional[Realm]=None) -> Dict[str, CountStat]:
         LoggingCountStat('messages_read::hour', UserCount, CountStat.HOUR),
         LoggingCountStat('messages_read_interactions::hour', UserCount, CountStat.HOUR),
 
-        # User Activity stats
+        # User activity stats
         # Stats that measure user activity in the UserActivityInterval sense.
 
         CountStat('1day_actives::day',

analytics/tests/test_views.py

@@ -437,7 +437,7 @@ class TestSupportEndpoint(ZulipTestCase):
             zulip_realm = get_realm("zulip")
             self.assert_in_success_response([f'<input type="hidden" name="realm_id" value="{zulip_realm.id}"',
                                              'Zulip Dev</h3>',
-                                             '<option value="1" selected>Self Hosted</option>',
+                                             '<option value="1" selected>Self hosted</option>',
                                              '<option value="2" >Limited</option>',
                                              'input type="number" name="discount" value="None"',
                                              '<option value="active" selected>Active</option>',
@@ -449,7 +449,7 @@ class TestSupportEndpoint(ZulipTestCase):
             lear_realm = get_realm("lear")
             self.assert_in_success_response([f'<input type="hidden" name="realm_id" value="{lear_realm.id}"',
                                              'Lear &amp; Co.</h3>',
-                                             '<option value="1" selected>Self Hosted</option>',
+                                             '<option value="1" selected>Self hosted</option>',
                                              '<option value="2" >Limited</option>',
                                              'input type="number" name="discount" value="None"',
                                              '<option value="active" selected>Active</option>',

analytics/views.py

@@ -172,14 +172,14 @@ def get_chart_data_for_remote_realm(
 
 @require_server_admin
 def stats_for_installation(request: HttpRequest) -> HttpResponse:
-    return render_stats(request, '/installation', 'Installation', True)
+    return render_stats(request, '/installation', 'installation', True)
 
 @require_server_admin
 def stats_for_remote_installation(request: HttpRequest, remote_server_id: int) -> HttpResponse:
     assert settings.ZILENCER_ENABLED
     server = RemoteZulipServer.objects.get(id=remote_server_id)
     return render_stats(request, f'/remote/{server.id}/installation',
-                        f'remote Installation {server.hostname}', True, True)
+                        f'remote installation {server.hostname}', True, True)
 
 @require_server_admin_api
 @has_request_variables
@@ -787,9 +787,9 @@ def user_activity_intervals() -> Tuple[mark_safe, Dict[str, float]]:
 
         realm_minutes[string_id] = realm_duration.total_seconds() / 60
 
-    output += f"\nTotal Duration:                      {total_duration}\n"
+    output += f"\nTotal duration:                      {total_duration}\n"
-    output += f"\nTotal Duration in minutes:           {total_duration.total_seconds() / 60.}\n"
+    output += f"\nTotal duration in minutes:           {total_duration.total_seconds() / 60.}\n"
-    output += f"Total Duration amortized to a month: {total_duration.total_seconds() * 30. / 60.}"
+    output += f"Total duration amortized to a month: {total_duration.total_seconds() * 30. / 60.}"
     content = mark_safe('<pre>' + output + '</pre>')
     return content, realm_minutes
 
@@ -1328,7 +1328,7 @@ def raw_user_activity_table(records: List[QuerySet]) -> str:
         ]
 
     rows = list(map(row, records))
-    title = 'Raw Data'
+    title = 'Raw data'
     return make_table(title, cols, rows)
 
 def get_user_activity_summary(records: List[QuerySet]) -> Dict[str, Dict[str, Any]]:
@@ -1473,7 +1473,7 @@ def user_activity_summary_table(user_summary: Dict[str, Dict[str, Any]]) -> str:
         'count',
     ]
 
-    title = 'User Activity'
+    title = 'User activity'
     return make_table(title, cols, rows)
 
 def realm_user_summary_table(all_records: List[QuerySet],

docs/development/overview.md

@@ -39,7 +39,7 @@ method][install-vagrant].
 
 If you have a very slow network connection, however, you may want to
 avoid using Vagrant (which involves downloading an Ubuntu virtual
-machine or Linux Container) and either
+machine or Linux container) and either
 [install directly][install-direct] (recommended), or use
 [the manual install process][install-generic] instead.  These options
 only support Linux.
@@ -71,7 +71,7 @@ need to.
 Once you've installed the Zulip development environment, you'll want
 to read these documents to learn how to use it:
 
-* [Using the Development Environment][using-dev-env]
+* [Using the development environment][using-dev-env]
 * [Testing][testing] (and [Configuring CI][ci])
 
 And if you've set up the Zulip development environment on a remote

docs/development/remote.md

@@ -254,7 +254,7 @@ Now your workspace should look similar this:
 Next, read the following to learn more about developing for Zulip:
 
 * [Git & GitHub Guide][rtd-git-guide]
-* [Using the Development Environment][rtd-using-dev-env]
+* [Using the development environment][rtd-using-dev-env]
 * [Testing][rtd-testing]
 
 [install-direct]: ../development/setup-advanced.html#installing-directly-on-ubuntu-debian-centos-or-fedora

docs/development/request-remote.md

@@ -73,7 +73,7 @@ Once you've confirmed you can connect to your remote server, take a look at:
 
 Next, read the following to learn more about developing for Zulip:
 
-* [Using the Development Environment](../development/using.md)
+* [Using the development environment](../development/using.md)
 * [Testing](../testing/testing.md)
 
 [github-join]: https://github.com/join

docs/development/setup-advanced.md

@@ -2,19 +2,19 @@
 
 Contents:
 
-* [Installing directly on Ubuntu, Debian, Centos, or Fedora](#installing-directly-on-ubuntu-debian-centos-or-fedora)
+* [Installing directly on Ubuntu, Debian, CentOS, or Fedora](#installing-directly-on-ubuntu-debian-centos-or-fedora)
 * [Installing directly on Windows 10](#installing-directly-on-windows-10-experimental)
 * [Installing manually on other Linux/UNIX](#installing-manually-on-unix)
 * [Installing directly on cloud9](#installing-on-cloud9)
 
-## Installing directly on Ubuntu, Debian, Centos, or Fedora
+## Installing directly on Ubuntu, Debian, CentOS, or Fedora
 
 If you'd like to install a Zulip development environment on a computer
 that's running one of:
 
 * Ubuntu 20.04 Focal, 18.04 Bionic
 * Debian 10 Buster
-* Centos 7 (beta)
+* CentOS 7 (beta)
 * Fedora 29 (beta)
 * RHEL 7 (beta)
 
@@ -279,14 +279,14 @@ proxy in the environment as follows:
  yarn config set https-proxy http://proxy_host:port
  ```
 
-## Installing on cloud9
+## Installing on Cloud9
 
 AWS Cloud9 is a cloud-based integrated development environment (IDE)
 that lets you write, run, and debug your code with just a browser. It
 includes a code editor, debugger, and terminal.
 
 This section documents how to set up the Zulip development environment
-in a cloud9 workspace.  If you don't have an existing cloud9 account,
+in a Cloud9 workspace.  If you don't have an existing Cloud9 account,
 you can sign up [here](https://aws.amazon.com/cloud9/).
 
 * Create a Workspace, and select the blank template.
@@ -295,10 +295,10 @@ you can sign up [here](https://aws.amazon.com/cloud9/).
   Free Tier).
 * Clone the zulip repo: `git clone --config pull.rebase
   https://github.com/<your-username>/zulip.git`
-* Restart rabbitmq-server since its broken on cloud9: `sudo service
+* Restart rabbitmq-server since its broken on Cloud9: `sudo service
   rabbitmq-server restart`.
 * And run provision `cd zulip && ./tools/provision`, once this is done.
-* Activate the zulip virtual environment by `source
+* Activate the Zulip virtual environment by `source
   /srv/zulip-py3-venv/bin/activate` or by opening a new terminal.
 
 #### Install zulip-cloud9
@@ -321,7 +321,7 @@ you need to start a new terminal.
 
 Your development server would be running at
 `https://<workspace-name>-<username>.c9users.io` on port 8080.  You
-dont need to add `:8080` to your url, since the cloud9 proxy should
+dont need to add `:8080` to your URL, since the Cloud9 proxy should
 automatically forward the connection. You might want to visit
 [zulip-cloud9 repo](https://github.com/cPhost/zulip-cloud9) and it's
 [wiki](https://github.com/cPhost/zulip-cloud9/wiki) for more info on

docs/development/setup-vagrant.md

@@ -65,7 +65,7 @@ to GitHub working on your machine.
 
 Follow our [Git guide][set-up-git] in order to install Git, set up a
 GitHub account, create an SSH key to access code on GitHub
-efficiently, etc.  Be sure to create an ssh key and add it to your
+efficiently, etc.  Be sure to create an SSH key and add it to your
 GitHub account using
 [these instructions](https://help.github.com/en/articles/generating-an-ssh-key).
 
@@ -83,8 +83,8 @@ Jump to:
 1. Install [Vagrant][vagrant-dl] (latest).
 2. Install [VirtualBox][vbox-dl] (latest).
 
-(For a non-free option, but better performance, you can also use [VMWare
+(For a non-free option, but better performance, you can also use [VMware
-Fusion][vmware-fusion-dl] with the [VMWare Fusion Vagrant
+Fusion][vmware-fusion-dl] with the [VMware Fusion Vagrant
 plugin][vagrant-vmware-fusion-dl] or [Parallels Desktop][parallels-desktop-dl] as
 a provider for Vagrant.)
 
@@ -252,7 +252,7 @@ git remote add -f upstream https://github.com/zulip/zulip.git
 
 This will create a 'zulip' directory and download the Zulip code into it.
 
-Don't forget to replace YOURUSERNAME with your git username. You will see
+Don't forget to replace YOURUSERNAME with your Git username. You will see
 something like:
 
 ```
@@ -534,7 +534,7 @@ $ ./tools/run-dev.py
 Next, read the following to learn more about developing for Zulip:
 
 * [Git & GitHub Guide][rtd-git-guide]
-* [Using the Development Environment][rtd-using-dev-env]
+* [Using the development environment][rtd-using-dev-env]
 * [Testing][rtd-testing] (and [Configuring CI][ci] to
 run the full test suite against any branches you push to your fork,
 which can help you optimize your development workflow).
@@ -803,7 +803,7 @@ that failed.  Once you've resolved the problem, you can rerun
 `tools/provision` to proceed; the provisioning system is designed
 to recover well from failures.
 
-The zulip provisioning system is generally highly reliable; the most common
+The Zulip provisioning system is generally highly reliable; the most common
 cause of issues here is a poor network connection (or one where you need a
 proxy to access the Internet and haven't [configured the development
 environment to use it](#specifying-a-proxy).
@@ -985,7 +985,7 @@ connect to your development server.
 ### Customizing CPU and RAM allocation
 
 When running Vagrant using a VM-based provider such as VirtualBox or
-VMWare Fusion, CPU and RAM resources must be explicitly allocated to
+VMware Fusion, CPU and RAM resources must be explicitly allocated to
 the guest system (with Docker and other container-based Vagrant
 providers, explicit allocation is unnecessary and the settings
 described here are ignored).

docs/documentation/overview.md

@@ -34,7 +34,7 @@ Zulip servers.  These docs are written in
 [Commonmark Markdown](https://commonmark.org/) with a small bit of rST.
 We've chosen Markdown because it is
 [easy to write](https://commonmark.org/help/).  The source for Zulip's
-developer documentation is at `docs/` in the Zulip git repository, and
+developer documentation is at `docs/` in the Zulip Git repository, and
 they are served in production at
 [zulip.readthedocs.io](https://zulip.readthedocs.io/en/latest/).
 
@@ -129,7 +129,7 @@ payload verification.  Note that this test does not check for broken
 links (those are checked by `test-help-documentation`).
 
 * `tools/test-help-documentation` checks `/help/`, `/api/`,
-  `/integrations/`, and the Core website ("portico") documentation for
+  `/integrations/`, and the core website ("portico") documentation for
   broken links.  Note that the "portico" documentation check has a
   manually maintained whitelist of pages, so if you add a new page to
   this site, you will need to edit `PorticoDocumentationSpider` to add it.

docs/documentation/user.md

@@ -11,7 +11,7 @@ The feature articles serve a few different purposes:
 * Feature discovery, for someone browsing the `/help` page, and looking at
   the set of titles.
 * Public documentation of our featureset, for someone googling "can zulip do .."
-* Canned responses to support questions; if someone emails a zulip admin
+* Canned responses to support questions; if someone emails a Zulip admin
   asking "how do I change my name", they can reply with a link to the doc.
 * Feature explanations for new Zulip users and admins, especially for
   organization settings.
@@ -239,9 +239,9 @@ languages in API docs, etc.  To create a tab switcher, write:
 
     {start_tabs}
     {tab|desktop-web}
-    # First Tab's content
+    # First tab's content
     {tab|ios}
-    # Second Tab's content
+    # Second tab's content
     {tab|android}
     # Third tab's content
     {end_tabs}

docs/git/overview.md

@@ -51,8 +51,8 @@ Finally, install the [Zulip developer environment][zulip-rtd-dev-overview], and
 ***
 
 The following sections will help you be awesome with Zulip and Git/GitHub in a
-rebased-based workflow. Read through it if you're new to git, to a rebase-based
+rebased-based workflow. Read through it if you're new to Git, to a rebase-based
-git workflow, or if you'd like a git refresher.
+Git workflow, or if you'd like a Git refresher.
 
 [gitbook-rebase]: https://git-scm.com/book/en/v2/Git-Branching-Rebasing
 [github-rebase-pr]: https://github.com/edx/edx-platform/wiki/How-to-Rebase-a-Pull-Request

docs/git/setup.md

@@ -14,7 +14,7 @@ administrator][git-bash-admin] at all times.**
 You'll also need a GitHub account, which you can sign up for
 [here][github-join].
 
-We highly recommend you create an ssh key if you don't already have
+We highly recommend you create an SSH key if you don't already have
 one and [add it to your GitHub account][github-help-add-ssh-key].  If
 you don't, you'll have to type your GitHub username and password every
 time you interact with GitHub, which is usually several times a day.
@@ -44,7 +44,7 @@ If you don't already have one installed, here are some suggestions:
 - Windows: [SourceTree][gitgui-sourcetree]
 
 If you like working on the command line, but want better visualization and
-navigation of your git repo, try [Tig][tig], a cross-platform ncurses-based
+navigation of your Git repo, try [Tig][tig], a cross-platform ncurses-based
 text-mode interface to Git.
 
 And, if none of the above are to your liking, try [one of these][gitbook-guis].

docs/git/terminology.md

@@ -1,7 +1,7 @@
 # Important Git terms
 
 When you install Git, it adds a manual entry for `gitglossary`. You can view
-this glossary by running `man gitglossary`. Below we've included the git terms
+this glossary by running `man gitglossary`. Below we've included the Git terms
 you'll encounter most often along with their definitions from *gitglossary*.
 
 ## branch

docs/git/working-copies.md

@@ -1,7 +1,7 @@
 # Working copies
 
 When you work on Zulip code, there are three working copies
-of the Zulip git repo that you are generally concerned with:
+of the Zulip Git repo that you are generally concerned with:
 
 - local copy: This lives on your laptop or your remote dev instance.
 - forked copy: This lives on GitHub, and it's tied to your account.

docs/overview/architecture-overview.md

@@ -135,7 +135,7 @@ from outside.
     and the production build process (`tools/build-release-tarball`)
     compiles, minifies, and installs the static assets into the
     `prod-static/` tree form. In development, files are served directly
-    from `/static/` in the git repository.
+    from `/static/` in the Git repository.
 -   Requests to `/json/events` and `/api/v1/events`, i.e. the
     real-time push system, are sent to the Tornado server.
 -   Requests to all other paths are sent to the Django app running via
@@ -184,25 +184,25 @@ persistence:
     # Zulip-specific configuration: disable saving to disk.
     save ""
 
-People often wonder if we could replace memcached with redis (or
+People often wonder if we could replace memcached with Redis (or
-replace RabbitMQ with redis, with some loss of functionality).
+replace RabbitMQ with Redis, with some loss of functionality).
 
 The answer is likely yes, but it wouldn't improve Zulip.
 Operationally, our current setup is likely easier to develop and run
-in production than a pure redis system would be.  Meanwhile, the
+in production than a pure Redis system would be.  Meanwhile, the
-perceived benefit for using redis is usually to reduce memory
+perceived benefit for using Redis is usually to reduce memory
 consumption by running fewer services, and no such benefit would
 materialize:
 
 * Our cache uses significant memory, but that memory usage would be
-  essentially the same with redis as it is with memcached.
+  essentially the same with Redis as it is with memcached.
 * All of these services have low minimum memory requirements, and in
-  fact our applications for redis and RabbitMQ do not use significant
+  fact our applications for Redis and RabbitMQ do not use significant
   memory even at scale.
-* We would likely need to run multiple redis services (with different
+* We would likely need to run multiple Redis services (with different
   configurations) in order to ensure the pure LRU use case (memcached)
   doesn't push out data that we want to persist until expiry
-  (redis-based rate limiting) or until consumed (RabbitMQ-based
+  (Redis-based rate limiting) or until consumed (RabbitMQ-based
   queuing of deferred work).
 
 ### RabbitMQ
@@ -237,12 +237,12 @@ with the operating system.
 In production, Postgres is installed with a default configuration. The
 directory that would contain configuration files
 (`puppet/zulip/files/postgresql`) has only a utility script and a custom
-list of stopwords used by a Postgresql extension.
+list of stopwords used by a PostgreSQL extension.
 
-In a development environment, configuration of that postgresql
+In a development environment, configuration of that PostgreSQL
 extension is handled by `tools/postgres-init-dev-db` (invoked by
 `tools/provision`).  That file also manages setting up the
-development postgresql user.
+development PostgreSQL user.
 
 `tools/provision` also invokes `tools/rebuild-dev-database`
 to create the actual database with its schema.
@@ -287,11 +287,11 @@ self-explanatory names.
     topic]", or "Link to this conversation". To avoid visual clutter,
     the chevron only appears in the web UI upon hover.
 
-* **ellipsis**: A small vertical three dot icon(technically called
+* **ellipsis**: A small vertical three dot icon (technically called
     as ellipsis-v), present in sidebars as a menu icon.
-    It offers contextual options for Global Filters(All messages
+    It offers contextual options for global filters (All messages
-    and Starred messages), Stream Filters and Topics in left
+    and Starred messages), stream filters and topics in left
-    sidebar and User in right sidebar. To avoid visual clutter
+    sidebar and users in right sidebar. To avoid visual clutter
     ellipsis only appears in the web UI upon hover.
 
 * **huddle**: What the codebase calls a "group private message".

docs/overview/changelog.md

@@ -31,7 +31,7 @@ in bursts.
   data will fascilitate future features showing a log of activity by
   a given user or changes to an organization's settings.
 - Added support for using Sentry for processing backend exceptions.
-- Added documentation for using `wal-g` for continuous postgres backups.
+- Added documentation for using `wal-g` for continuous Postgres backups.
 - Added loading spinners for message editing widgets.
 - Added live update of compose placeholder text when recipients change.
 - The Zoom integration is now stable (no longer beta).
@@ -50,7 +50,7 @@ in bursts.
 - Fixed screenreader accessibility of many components, including
   the compose box, message editing, popovers, and many more.
 - Improved formatting of GitLab integration.
-- Improved positioning logic for inline Youtube previews.
+- Improved positioning logic for inline YouTube previews.
 - Upgraded our ancient forked version of bootstrap, on a path towards
   removing the last forked dependencies from the codebase.
 - Updated webapp codebase to use many modern ES6 patterns.
@@ -124,7 +124,7 @@ in bursts.
 - The Zulip server now sets badge counts for the iOS mobile app.
 - Quote-and-reply now generates a handy link to the quoted message.
 - Upgraded Django from 1.11.x to the latest LTS series, 2.2.x.
-- Added integrations for ErrBit, Grafana, Thinkst Canary, and AlertManager.
+- Added integrations for ErrBit, Grafana, Thinkst Canary, and Alertmanager.
 - Extended API documentation to have detailed data on most responses,
   validated against the API's actual implementation and against all
   tests in our extensive automated test suite.
@@ -132,7 +132,7 @@ in bursts.
   global/default policy and policies for specific streams.
 - Added a new incoming webhook API that accepts messages in the format
   used by Slack's incoming webhooks API.
-- Introduced the Zulip API Feature Level, a concept that will greatly
+- Introduced the Zulip API feature level, a concept that will greatly
   simplify the implementation of mobile, terminal, and desktop clients
   that need to talk to a wide range of supported Zulip server
   versions, as well as the [Zulip API
@@ -162,22 +162,22 @@ in bursts.
   accounts affected by this bug, so we expect the vast majority of
   installations will have none.
 - This release switches Zulip to install Postgres 12 from the upstream
-  postgres repository by default, rather than using the default
+  Postgres repository by default, rather than using the default
   Postgres version included with the operating system.  Existing Zulip
   installations will continue to work with Postgres 10; this detail is
   configured in `/etc/zulip/zulip.conf`.  We have no concrete plans to
   start requiring Postgres 12, though we do expect it to improve
   performance.  Installations that would like to upgrade can follow
-  [our new postgres upgrade guide][postgres-upgrade].
+  [our new Postgres upgrade guide][postgres-upgrade].
 - The format of the `JWT_AUTH_KEYS` setting has changed to include an
   [algorithms](https://pyjwt.readthedocs.io/en/latest/algorithms.html)
   list: `{"subdomain": "key"}` becomes `{"subdomain": {"key": "key",
   "algorithms": ["HS256"]}}`.
-- Added a new Organization Owner permission above the previous
+- Added a new organization owner permission above the previous
-  Organization Administrator.  All existing organization
+  organization administrator.  All existing organization
   administrators are automatically converted into organization owners.
   Certain sensitive administrative settings are now only
-  editable by Organization Owners.
+  editable by organization owners.
 - The changelog now has a section that makes it easy to find the
   Upgrade notes for all releases one is upgrading across.
 
@@ -322,7 +322,7 @@ in bursts.
 ### 2.1.7 -- 2020-06-25
 
 - CVE-2020-15070: Fix privilege escalation vulnerability with custom
-  profile fields and direct write access to Zulip's postgres database.
+  profile fields and direct write access to Zulip's Postgres database.
 - Changed default memcached authentication username to zulip@localhost,
   fixing authentication problems when servers change their hostname.
 
@@ -366,7 +366,7 @@ details.
 
 - Fixed a regression in 2.1.3 that impacted creating the very first
   organization via our data import tools.
-- Remove the old `tsearch_extras` postgres extension, which was causing
+- Remove the old `tsearch_extras` Postgres extension, which was causing
   an exception restoring backups on fresh Zulip servers that had been
   generated on systems that had been upgraded from older Zulip releases.
 - Removed fetching GitHub contributor data from static asset build
@@ -398,7 +398,7 @@ details.
 - Fixed copy-to-clipboard button for outgoing webhook bots.
 - Fixed logging spam from soft_deactivation cron job.
 - Fixed email integration handling of emails with nested MIME structure.
-- Fixed unicode bugs in incoming email integration.
+- Fixed Unicode bugs in incoming email integration.
 - Fixed error handling for Slack data import.
 - Fixed incoming webhook support for AWX 9.x.y.
 - Fixed a couple missing translation tags.
@@ -413,8 +413,8 @@ details.
 - Corrected fix for CVE-2019-19775 (the original fix was affected by
   an unfixed security bug in Python's urllib, CVE-2015-2104).
 - Migrated data for handling replies to missed-message emails from
-  semi-persistent redis to the fully persistent database.
+  semi-persistent Redis to the fully persistent database.
-- Added authentication for redis and memcached even in configurations
+- Added authentication for Redis and memcached even in configurations
   where these are running on localhost, for add hardening against
   attacks from malicious processes running on the Zulip server.
 - Improved logging for misconfigurations of LDAP authentication.
@@ -444,7 +444,7 @@ details.
 - Added support for Debian buster.  Removed support for EOL Ubuntu Trusty.
 - Added support for SAML authentication.
 - Removed our dependency on `tsearch_extras`, making it possible to
-  run a production Zulip server against any postgres database
+  run a production Zulip server against any Postgres database
   (including those where one cannot install extensions, like Amazon RDS).
 - Significantly improved the email->Zulip gateway, and added [nice
   setup documentation](../production/email-gateway.md).  It now
@@ -488,7 +488,7 @@ configure this feature entirely in the UI.  However, servers that had
 previously [enabled previews of linked
 websites](https://zulip.com/help/allow-image-link-previews) will
 lose the setting and need to re-enable it.
-- We rewrote the Google Authentication backend to use the
+- We rewrote the Google authentication backend to use the
   `python-social-auth` system we use for other third-party
   authentication systems.  For this release, the old variable names
   still work, but users should update the following setting names in
@@ -644,7 +644,7 @@ lose the setting and need to re-enable it.
   joined that stream.
 - Fixed several subtle real-time sync issues with "stream settings".
 - Fixed a few subtle Markdown processor bugs involving emoji.
-- Fixed several issues where Linkifiers validation was overly restrictive.
+- Fixed several issues where linkifiers validation was overly restrictive.
 - Fixed several rare/minor UI consistency issues in the left sidebar.
 - Fixed issues involving saving a message edit before file upload completes.
 - Fixed issues with pasting images into the compose box from Safari.
@@ -700,7 +700,7 @@ lose the setting and need to re-enable it.
 - Fixed a table layout bug in "deactivated users" settings.
 - Fixed an exception when administrators edited bot users when custom
   profile fields were configured in the organization.
-- Fixed a bug enabling the PGRoonga search backend with older postgres.
+- Fixed a bug enabling the PGRoonga search backend with older Postgres.
 - Fixed getting personal API key when passwords are disabled.
 
 ### 2.0.3 -- 2019-04-23
@@ -714,11 +714,11 @@ lose the setting and need to re-enable it.
   such a version by default, but one can install it manually).
 - Fixed `manage.py query_ldap` test tool (broken in 2.0.2).
 - Fixed several bugs in new backup and restore tools.
-- Fixed minor bugs with Youtube previews.
+- Fixed minor bugs with YouTube previews.
 
 ### 2.0.2 -- 2019-03-15
 
-- Fixed a regression in the puppet configuration for S3 upload backend
+- Fixed a regression in the Puppet configuration for S3 upload backend
   introduced in 2.0.1.
 - Fixed a too-fast fade for "Saved" in organization settings.
 - Fixed a white flash when loading a browser in night mode.
@@ -821,7 +821,7 @@ and is enabled by default in that case. To disable it, set
 - Improved accessibility of emoji rendering in messages bodies.
 - Eliminated UI lag when using "Quote and reply".
 - Expanded production documentation for more unusual deployment options.
-- Expanded set of characters allowed in custom Linkifiers.
+- Expanded set of characters allowed in custom linkifiers.
 - Optimized development provisioning; now takes 2s in the no-op case.
 - Zulip's Help Center now has nicely generated open graph tags.
 - Fixed missing API authentication headers for mobile file access.
@@ -842,11 +842,11 @@ and is enabled by default in that case. To disable it, set
 ### 1.9.2 -- 2019-01-29
 
 This release migrates Zulip off a deprecated Google+ API (necessary
-for Google Authentication to continue working past March 7), and
+for Google authentication to continue working past March 7), and
 contains a few bug fixes for the installer and Slack import.  It has
 minimal changes for existing servers not using Google authentication.
 
-- Updated the Google Auth integration to stop using a deprecated and
+- Updated the Google auth integration to stop using a deprecated and
   soon-to-be-removed Google+ authentication API.
 - Improved installer error messages for common configuration problems.
 - Fixed several bugs in Slack, Gitter, and HipChat import tools.
@@ -976,7 +976,7 @@ Zulip installations; it has minimal changes for existing servers.
 - Improved Zulip's layout for windows with a width around 1024px.
 - Improved Zulip's generic error handling behavior for webhooks.
 - Improved keyboard navigation of settings and popovers.
-- Renamed "Realm Filters" to "Linkifiers", at least in the UI.
+- Renamed "realm filters" to "linkifiers", at least in the UI.
 - Converted several layered-checkbox settings to clearer dropdowns.
 - Cleaned up some legacy APIs still using email addresses.
 - Made arrow-key navigation work within right and left sidebar search.
@@ -1079,7 +1079,7 @@ Zulip installations; it has minimal changes for existing servers.
   public streams, even though from before a user subscribed.
 - Added a menu item to mark all messages as read.
 - Fixed image upload file pickers offering non-image files.
-- Fixed some subtle bugs with full-text search and unicode.
+- Fixed some subtle bugs with full-text search and Unicode.
 - Fixed bugs in the "edit history" HTML rendering process.
 - Fixed popovers being closed when new messages come in.
 - Fixed unexpected code blocks when using the email mirror.
@@ -1413,7 +1413,7 @@ running a version from before 1.7 should upgrade directly to 1.7.1.
 - Simplified the settings for configuring senders for our emails.
 - Emoji can now be typed with spaces, e.g. entering "robot face" in
   the typeahead as well as "robot_face".
-- Improved title and alt text for unicode emoji.
+- Improved title and alt text for Unicode emoji.
 - Added development tools to make iterating on emails and error pages easy.
 - Added backend support for multi-use invite links (no UI for creating yet).
 - Added a central debugging log for attempts to send outgoing emails.
@@ -1486,7 +1486,7 @@ Zulip apps.
 * Added an icon to distinguish bot users as message senders.
 * Added a command-line Slack importer tool using the API.
 * Added new announcement notifications on stream creation.
-* Added support for some newer unicode emoji code points.
+* Added support for some newer Unicode emoji code points.
 * Added support for users deleting realm emoji they themselves uploaded.
 * Added support for organization administrators deleting messages.
 * Extended data available to mobile apps to cover the entire API.
@@ -1523,7 +1523,7 @@ Zulip apps.
 * Fixed numerous bugs with the message editing widget.
 * Fixed missing logging / rate limiting on browser endpoints.
 * Fixed regressions in Zulip's browser state preservation on reload logic.
-* Fixed support for unicode characters in the email mirror system.
+* Fixed support for Unicode characters in the email mirror system.
 * Fixed load spikes when email mirror is receiving a lot of traffic.
 * Fixed the ugly grey flicker when scrolling fast on Macs.
 * Fixed previews of GitHub image URLs.
@@ -1597,7 +1597,7 @@ Zulip apps.
 - Added a webhook integration for GitHub, replacing the deprecated
   github-services hook.
 - Normalized the message formatting for all the Zulip Git integrations.
-- Added support for VMWare Fusion Vagrant provider for faster OSX
+- Added support for VMware Fusion Vagrant provider for faster OSX
   development.
 - Added a shields.io style badge for joining a Zulip server.
 - Added admin setting for which email domains can join a realm.
@@ -1630,7 +1630,7 @@ Zulip apps.
 - Added several new linters (eslint, pep8) and cleaned the codebase.
 - Optimized the speed of the Zulip upgrade process, especially with Git.
 - Have peer_add events send user_id, not email.
-- Fixed problems with rabbitmq when installing Zulip.
+- Fixed problems with RabbitMQ when installing Zulip.
 - Fixed JavaScript not being gzip-compressed properly.
 - Fixed a major performance bug in the Tornado service.
 - Fixed a frontend performance bug creating streams in very large realms.
@@ -1702,8 +1702,8 @@ Zulip apps.
 - Added management command for creating realms through web UI.
 - Added management command to send password reset emails.
 - Added endpoint for mobile apps to query available auth backends.
-- Added LetsEncrypt documentation for getting SSL certificates.
+- Added Let's Encrypt documentation for getting SSL certificates.
-- Added nice rendering of unicode emoji.
+- Added nice rendering of Unicode emoji.
 - Added support for pinning streams to the top of the left sidebar.
 - Added search box for filtering user list when creating a new stream.
 - Added realm setting to disable message editing.
@@ -1714,10 +1714,10 @@ Zulip apps.
   easy to add additional social authentication methods).
 - Added TERMS_OF_SERVICE setting using Markdown formatting to configure
   the terms of service for a Zulip server.
-- Added numerous hooks to puppet modules to enable more configurations.
+- Added numerous hooks to Puppet modules to enable more configurations.
-- Moved several useful puppet components into the main puppet
+- Moved several useful Puppet components into the main Puppet
-  manifests (setting a redis password, etc.).
+  manifests (setting a Redis password, etc.).
-- Added automatic configuration of postgres/memcached settings based
+- Added automatic configuration of Postgres/memcached settings based
   on the server's available RAM.
 - Added scripts/upgrade-zulip-from-git for upgrading Zulip from a Git repo.
 - Added preliminary support for Python 3.  All of Zulip's test suites now
@@ -1732,7 +1732,7 @@ Zulip apps.
 - Improved missed message emails to better support directly replying.
 - Increased backend test coverage of Python code to 85.5%.
 - Increased mypy static type coverage of Python code to 95%.  Also
-  fixed many string annotations to properly handle unicode.
+  fixed many string annotations to properly handle Unicode.
 - Fixed major i18n-related frontend performance regression on
   /#subscriptions page.  Saves several seconds of load time with 1k
   streams.
@@ -1749,7 +1749,7 @@ Zulip apps.
 - Fixed EPMD restart being attempted on every puppet apply.
 - Fixed message cache filling; should improve perf after server restart.
 - Fixed caching race condition when changing user objects.
-- Fixed buggy puppet configuration for supervisord restarts.
+- Fixed buggy Puppet configuration for supervisord restarts.
 - Fixed some error handling race conditions when editing messages.
 - Fixed fastcgi_params to protect against the httpoxy attack.
 - Fixed bug preventing users with mit.edu emails from registering accounts.
@@ -1757,7 +1757,7 @@ Zulip apps.
 - Fixed APNS push notification support (had been broken by Apple changing
   the APNS API).
 - Fixed some logic bugs in how attachments are tracked.
-- Fixed unnecessarily resource-intensive rabbitmq cron checks.
+- Fixed unnecessarily resource-intensive RabbitMQ cron checks.
 - Fixed old deployment directories leaking indefinitely.
 - Fixed need to manually add localhost in ALLOWED_HOSTS.
 - Fixed display positioning for the color picker on subscriptions page.
@@ -1817,7 +1817,7 @@ Zulip apps.
 - Fixed erroneous WWW-Authenticate headers with expired sessions.
 - Changed "coworkers" to "users" in the Zulip UI.
 - Changed add_default_stream REST API to correctly use PUT rather than PATCH.
-- Updated the Zulip emoji set (the Android Emoji) to a modern version.
+- Updated the Zulip emoji set (the Android emoji) to a modern version.
 - Made numerous small improvements to the Zulip development experience.
 - Migrated backend templates to the faster Jinja2 templating system.
 - Migrated development environment setup scripts to tools/setup/.
@@ -1844,7 +1844,7 @@ Zulip apps.
 - Added ability for realm administrators to manage custom emoji.
 - Added guide to writing new integrations.
 - Enabled camo image proxy to fix mixed-content warnings for http images.
-- Refactored the Zulip puppet modules to be more modular.
+- Refactored the Zulip Puppet modules to be more modular.
 - Refactored the Tornado event system, fixing old memory leaks.
 - Removed many old-style /json API endpoints
 - Implemented running queue processors multithreaded in development,
@@ -1864,7 +1864,7 @@ Zulip apps.
 - Added new integration for Travis CI.
 - Added settings option to control maximum file upload size.
 - Added support for running Zulip development environment in Docker.
-- Added easy configuration support for a remote postgres database.
+- Added easy configuration support for a remote Postgres database.
 - Added extensive documentation on scalability, backups, and security.
 - Recent private message threads are now displayed expanded similar to
   the pre-existing recent topics feature.
@@ -1886,7 +1886,7 @@ Zulip apps.
 - Fixed buggy #! lines in upgrade scripts.
 
 ### 1.3.8 - 2015-11-15
-- Added options to the Python api for working with untrusted server certificates.
+- Added options to the Python API for working with untrusted server certificates.
 - Added a lot of documentation on the development environment and testing.
 - Added partial support for translating the Zulip UI.
 - Migrated installing Node dependencies to use npm.
@@ -1913,7 +1913,7 @@ Zulip apps.
 This section links to the upgrade notes from past releases, so you can
 easily read them all when upgrading across multiple releases.
 
-* [Draft Upgrade notes for 4.0](#upgrade-notes-for-4-0)
+* [Draft upgrade notes for 4.0](#upgrade-notes-for-4-0)
 * [Upgrade notes for 3.0](#upgrade-notes-for-3-0)
 * [Upgrade notes for 2.1.5](#upgrade-notes-for-2-1-5)
 * [Upgrade notes for 2.1.0](#upgrade-notes-for-2-1-0)

docs/overview/directory-structure.md

@@ -138,7 +138,7 @@ Django context (i.e. with database access).
 
 -------------------------------------------------------------------------
 
-### Production puppet configuration
+### Production Puppet configuration
 
 This is used to deploy essentially all configuration in production.
 

docs/overview/gsoc-ideas.md

@@ -242,7 +242,7 @@ the areas mentioned above are not your main strength.
 
 As a data point, in Summer 2017, we had 4 students working on the
 React Native mobile app (1 focused primarily on visual design), 1 on
-the Electron Desktop app, 2 on bots/integrations, 1 on webapp visual
+the Electron desktop app, 2 on bots/integrations, 1 on webapp visual
 design, 2 on our development tooling and automated testing
 infrastructure, and the remaining 4 on various other parts of the
 backend and core webapp.
@@ -348,7 +348,7 @@ CSS](https://github.com/zulip/zulip/).
   (likely part 1) is
   [here](../subsystems/custom-apps.md).
   **Skills recommended**: Python and JavaScript/CSS, plus devops
-  skills (Linux deployment, Docker, puppet etc.) are all useful here.
+  skills (Linux deployment, Docker, Puppet etc.) are all useful here.
   Experience writing tools using various popular APIs is helpful for
   being able to make good choices.  Experts: Steve Howell.
 
@@ -454,7 +454,7 @@ Expert: Tommy Ip, Tim Abbott.
   adding [mypy](../testing/mypy.md) stubs
   for Django in mypy to make our type checking more powerful.  Read
   [our mypy blog post](https://blog.zulip.org/2016/10/13/static-types-in-python-oh-mypy/)
-  for details on how mypy works and is integrated into zulip.  This
+  for details on how mypy works and is integrated into Zulip.  This
   specific project is ideal for a strong contributor interested in
   type systems.
 

docs/production/deployment.md

@@ -56,8 +56,8 @@ file and you'll find inline documentation in comments for how to
 configure it.
 
 Since some of these services require some configuration on the node
-itself (e.g. installing our `postgres` extensions), we have designed
+itself (e.g. installing our Postgres extensions), we have designed
-the puppet configuration that Zulip uses for installing and upgrading
+the Puppet configuration that Zulip uses for installing and upgrading
 configuration to be completely modular.
 
 For example, you can install a Zulip rabbitmq server on a machine, you
@@ -74,7 +74,7 @@ of includes in
 though it's also possible to subclass some of the lower-level
 manifests defined in that directory if you want to customize.  A good
 example of doing this is in the
-[zulip_ops puppet configuration][zulipchat-puppet] that we use as part
+[zulip_ops Puppet configuration][zulipchat-puppet] that we use as part
 of managing chat.zulip.org and zulip.com.
 
 ### Using Zulip with Amazon RDS as the database
@@ -117,7 +117,7 @@ This complication will be removed in a future version.
 
 #### Step 2: Create the Postgres database
 
-Access an administrative `psql` shell on your postgres database, and
+Access an administrative `psql` shell on your Postgres database, and
 run the commands in `scripts/setup/create-db.sql` to:
 
 * Create a database called `zulip`.
@@ -126,7 +126,7 @@ run the commands in `scripts/setup/create-db.sql` to:
   `zulip` in the `zulip` database. You might have to grant `create`
   privileges first for the `zulip` user to do this.
 
-Depending on how authentication works for your postgres installation,
+Depending on how authentication works for your Postgres installation,
 you may also need to set a password for the Zulip user, generate a
 client certificate, or similar; consult the documentation for your
 database provider for the available options.
@@ -134,11 +134,11 @@ database provider for the available options.
 #### Step 3: Configure Zulip to use the Postgres database
 
 In `/etc/zulip/settings.py` on your Zulip server, configure the
-following settings with details for how to connect to your postgres
+following settings with details for how to connect to your Postgres
 server.  Your database provider should provide these details.
 
-* `REMOTE_POSTGRES_HOST`: Name or IP address of the postgres server.
+* `REMOTE_POSTGRES_HOST`: Name or IP address of the Postgres server.
-* `REMOTE_POSTGRES_PORT`: Port on the postgres server.
+* `REMOTE_POSTGRES_PORT`: Port on the Postgres server.
 * `REMOTE_POSTGRES_SSLMODE`: SSL Mode used to connect to the server.
 
 If you're using password authentication, you should specify the
@@ -152,7 +152,7 @@ postgres_password = abcd1234
 Now complete the installation by running the following commands.
 
 ```
-# Ask Zulip installer to initialize the postgres database.
+# Ask Zulip installer to initialize the Postgres database.
 su zulip -c '/home/zulip/deployments/current/scripts/setup/initialize-database'
 
 # And then generate a realm creation link:
@@ -233,7 +233,7 @@ For `nginx` configuration, there's two things you need to set up:
   `/etc/nginx/sites-available`) for the Zulip app.  You can look at
   our [nginx reverse proxy configuration][nginx-loadbalancer] to see
   an example of how to do this properly (the various include files are
-  available via the `zulip::nginx` puppet module).  Or modify this
+  available via the `zulip::nginx` Puppet module).  Or modify this
   example:
 
 ```

docs/production/email-gateway.md

@@ -31,7 +31,7 @@ records in DNS.
 
 ## Local delivery setup
 
-Zulip's puppet configuration provides everything needed to run this
+Zulip's Puppet configuration provides everything needed to run this
 integration; you just need to enable and configure it as follows.
 
 The main decision you need to make is what email domain you want to

docs/production/expensive-migrations.md

@@ -17,7 +17,7 @@ can run them manually before starting the upgrade:
   /home/zulip/deployments/current`
 2. Run `./manage.py dbshell`.  This will open a shell connected to the
   Postgres database.
-3. In the postgres shell, run the following commands:
+3. In the Postgres shell, run the following commands:
 
         CREATE INDEX CONCURRENTLY
         zerver_usermessage_is_private_message_id

docs/production/export-and-import.md

@@ -12,7 +12,7 @@ service (or back):
   * Backups must be restored on a server running the same Zulip
     version (most precisely, one where `manage.py showmigrations` has
     the same output).
-  * Backups must be restored on a server running the same `postgres`
+  * Backups must be restored on a server running the same Postgres
     version.
   * Backups aren't useful for migrating organizations between
     self-hosting and Zulip Cloud (which may require renumbering all
@@ -20,7 +20,7 @@ service (or back):
 
   We highly recommend this tool in situations where it is applicable,
   because it is highly optimized and highly stable, since the hard
-  work is done by the built-in backup feature of `postgres`.  We also
+  work is done by the built-in backup feature of Postgres.  We also
   document [backup details](#backup-details) for users managing
   backups manually.
 
@@ -36,7 +36,7 @@ service (or back):
   Like the backup tool, logical data exports must be imported on a
   Zulip server running the same version.  However, logical data
   exports can be imported on Zulip servers running a different
-  `postgres` version or hosting a different set of Zulip
+  Postgres version or hosting a different set of Zulip
   organizations.  We recommend this tool in cases where the backup
   tool isn't applicable, including situations where an easily
   machine-parsable export format is desired.
@@ -47,7 +47,7 @@ service (or back):
   inexpensively preserve public stream conversations when
   decommissioning a Zulip organization.
 
-* It's possible to set up [postgres streaming
+* It's possible to set up [Postgres streaming
   replication](#postgres-streaming-replication) and the [S3 file
   upload
   backend](../production/upload-backends.html#s3-backend-configuration)
@@ -69,7 +69,7 @@ The backup tool provides the following options:
   to (default: write to a file in `/tmp`).  On success, the
   console output will show the path to the output tarball.
 - `--skip-db`: Skip backup of the database.  Useful if you're using a
-  remote postgres host with its own backup system and just need to
+  remote Postgres host with its own backup system and just need to
   backup non-database state.
 - `--skip-uploads`: If `LOCAL_UPLOADS_DIR` is set, user-uploaded files
   in that directory will be ignored.
@@ -154,19 +154,19 @@ emails to send).  You can check whether these queues are empty using
 #### Backup details
 
 This section is primarily for users managing backups themselves
-(E.g. if they're using a remote postgres database with an existing
+(E.g. if they're using a remote Postgres database with an existing
 backup strategy), and also serves as documentation for what is
 included in the backups generated by Zulip's standard tools.  The
 data includes:
 
-* The postgres database.  You can back it up like any postgres
+* The Postgres database.  You can back it up like any Postgres
 database. We have some example tooling for doing that incrementally
 into S3 using [wal-g](https://github.com/wal-g/wal-g) in
 `puppet/zulip/manifests/postgres_backups.pp`.
 In short, this requires:
   - Zulip 1.4 or newer release.
   - An Amazon S3 bucket for storing the backups.
-  - `/etc/zulip/zulip-secrets.conf` on the postgres server like this:
+  - `/etc/zulip/zulip-secrets.conf` on the Postgres server like this:
     ```
     [secrets]
     s3_backups_key = # aws public key

docs/production/install-existing-server.md

@@ -33,7 +33,7 @@ sudo wget -O /etc/nginx/nginx.conf.zulip \
 sudo meld /etc/nginx/nginx.conf /etc/nginx/nginx.conf.zulip  # be sure to merge to the right
 ```
 
-After the zulip installation completes, then you can overwrite (or
+After the Zulip installation completes, then you can overwrite (or
 merge) your new nginx.conf with the installed one:
 
 ```shell
@@ -41,13 +41,13 @@ $ sudo meld /etc/nginx/nginx.conf.zulip /etc/nginx/nginx.conf  # be sure to merg
 $ sudo service nginx restart
 ```
 
-Zulip's puppet configuration will change the ownership of
+Zulip's Puppet configuration will change the ownership of
 `/var/log/nginx` so that the `zulip` user can access it.  Depending on
 your configuration, this may or may not cause problems.
 
 ### Puppet
 
-If you have a puppet server running on your server, you will get an
+If you have a Puppet server running on your server, you will get an
 error message about not being able to connect to the client during the
 install process:
 
@@ -55,7 +55,7 @@ install process:
 puppet-agent[29873]: Could not request certificate: Failed to open TCP connection to puppet:8140
 ```
 
-So you'll need to shutdown any puppet servers.
+So you'll need to shutdown any Puppet servers.
 
 ```shell
 $ sudo service puppet-agent stop
@@ -75,7 +75,7 @@ If you have an existing PostgreSQL database, note that Zulip will use
 the default `main` as its database name; make sure you're not using
 that.
 
-### Memcached, redis, and rabbitmq
+### Memcached, Redis, and RabbitMQ
 
 Zulip will, by default, configure these services for its use.  The
 configuration we use is pretty basic, but if you're using them for

docs/production/multiple-organizations.md

@@ -9,7 +9,7 @@ The vast majority of Zulip servers host just a single organization (or
 documents what's involved in hosting multiple Zulip organizations on a
 single server.
 
-Throughout this article, we'll assume you're working on a zulip server
+Throughout this article, we'll assume you're working on a Zulip server
 with hostname `zulip.example.com`.  You may also find the more
 [technically focused article on realms](../subsystems/realms.md) to be useful
 reading.
@@ -33,7 +33,7 @@ things:
   file.  That setting is the default in 1.7 and later.
 * Make sure you have SSL certificates for all of the subdomains you're
   going to use.  If you're using
-  [our LetsEncrypt instructions](ssl-certificates.md), it's easy to
+  [our Let's Encrypt instructions](ssl-certificates.md), it's easy to
   just specify multiple subdomains in your certificate request.
 * If necessary, modify your `nginx` configuration to use your new
   certificates.

docs/production/postgres.md

@@ -8,7 +8,7 @@ Previous versions of Zulip used whatever version of Postgres was
 included with the base operating system (E.g. Postgres 12 on Ubuntu
 Focal, 10 on Ubuntu Bionic, and 9.6 on Ubuntu Xenial).  We recommend
 that installations currently using older Postgres releases [upgrade to
-Postgres 12][upgrade-postgres], as may drop support for older postgres
+Postgres 12][upgrade-postgres], as may drop support for older Postgres
 in a future release.
 
 [upgrade-postgres]: ../production/upgrade-or-modify.html#upgrading-postgresql
@@ -16,7 +16,7 @@ in a future release.
 #### Remote Postgres database
 
 This is a bit annoying to set up, but you can configure Zulip to use a
-dedicated postgres server by setting the `REMOTE_POSTGRES_HOST`
+dedicated Postgres server by setting the `REMOTE_POSTGRES_HOST`
 variable in /etc/zulip/settings.py, and configuring Postgres
 certificate authentication (see
 http://www.postgresql.org/docs/9.1/static/ssl-tcp.html and
@@ -25,11 +25,11 @@ documentation on how to set this up and deploy the certificates) to
 make the DATABASES configuration in `zproject/computed_settings.py`
 work (or override that configuration).
 
-If you want to use a remote Postgresql database, you should configure
+If you want to use a remote PostgreSQL database, you should configure
 the information about the connection with the server. You need a user
 called "zulip" in your database server. You can configure these
 options in `/etc/zulip/settings.py` (the below descriptions are from the
-Postgresql documentation):
+PostgreSQL documentation):
 
 * `REMOTE_POSTGRES_HOST`: Name or IP address of the remote host
 * `REMOTE_POSTGRES_SSLMODE`: SSL Mode used to connect to the server,
@@ -64,15 +64,15 @@ sudo update-rc.d postgresql disable
 ```
 
 In future versions of this feature, we'd like to implement and
-document how to the remote postgres database server itself
+document how to the remote Postgres database server itself
 automatically by using the Zulip install script with a different set
-of puppet manifests than the all-in-one feature; if you're interested
+of Puppet manifests than the all-in-one feature; if you're interested
 in working on this, post to the Zulip development mailing list and we
 can give you some tips.
 
-#### Debugging postgres database issues
+#### Debugging Postgres database issues
 
-When debugging postgres issues, in addition to the standard `pg_top`
+When debugging Postgres issues, in addition to the standard `pg_top`
 tool, often it can be useful to use this query:
 
 ```
@@ -92,9 +92,9 @@ sending a Postgres process SIGKILL. Doing so will cause the database
 to kill all current connections, roll back any pending transactions,
 and enter recovery mode.
 
-#### Stopping the Zulip postgres database
+#### Stopping the Zulip Postgres database
 
-To start or stop postgres manually, use the pg_ctlcluster command:
+To start or stop Postgres manually, use the pg_ctlcluster command:
 
 ```
 pg_ctlcluster 9.1 [--force] main {start|stop|restart|reload}
@@ -120,7 +120,7 @@ Many database parameters can be adjusted while the database is
 running. Just modify /etc/postgresql/9.1/main/postgresql.conf and
 issue a reload. The logs will note the change.
 
-#### Debugging issues starting postgres
+#### Debugging issues starting Postgres
 
 pg_ctlcluster often doesn't give you any information on why the
 database failed to start. It may tell you to check the logs, but you
@@ -141,7 +141,7 @@ pg_ctlcluster does.
 
 #### Postgres vacuuming alerts
 
-The `autovac_freeze` postgres alert from `check_postgres` is
+The `autovac_freeze` Postgres alert from `check_postgres` is
 particularly important.  This alert indicates that the age (in terms
 of number of transactions) of the oldest transaction id (XID) is
 getting close to the `autovacuum_freeze_max_age` setting.  When the
@@ -154,4 +154,4 @@ database as a database superuser (`postgres`).
 
 See
 http://www.postgresql.org/docs/9.1/static/routine-vacuuming.html#VACUUM-FOR-WRAPAROUND
-for more details on postgres vacuuming.
+for more details on Postgres vacuuming.

docs/production/requirements.md

@@ -18,8 +18,8 @@ For details on each of these requirements, see below.
 #### General
 
 The installer expects Zulip to be the **only thing** running on the
-system; it will install system packages with `apt` (like nginx,
+system; it will install system packages with `apt` (like Nginx,
-postgresql, and redis) and configure them for its own use.  We
+PostgreSQL, and Redis) and configure them for its own use.  We
 strongly recommend using either a fresh machine instance in a cloud
 provider, a fresh VM, or a dedicated machine.  If you decide to
 disregard our advice and use a server that hosts other services, we
@@ -50,7 +50,7 @@ https://help.ubuntu.com/community/Repositories/Ubuntu
 
 #### Hardware specifications
 
-* CPU and Memory: For installations with 100+ users you'll need a
+* CPU and memory: For installations with 100+ users you'll need a
   minimum of **2 CPUs** and **4GB RAM**. For installations with fewer
   users, 1 CPU and 2GB RAM is sufficient. We strongly recommend against
   installing with less than 2GB of RAM, as you will likely experience
@@ -149,7 +149,7 @@ most use cases, there's little scalability benefit to doing so.  See
 installing Zulip with a dedicated database server.
 
 * **Dedicated database**.  For installations with hundreds of daily
-  active users, we recommend using a [remote postgres
+  active users, we recommend using a [remote Postgres
   database](postgres.md), but it's not required.
 
 * **RAM:**  We recommended more RAM for larger installations:

docs/production/security-model.md

@@ -36,7 +36,7 @@ announcement).
   prevent CSRF attacks.
 
 * The preferred way to log in to Zulip is using an SSO solution like
-  Google Auth, LDAP, or similar, but Zulip also supports password
+  Google auth, LDAP, or similar, but Zulip also supports password
   authentication.  See
   [the authentication methods documentation](../production/authentication-methods.md)
   for details on Zulip's available authentication methods.
@@ -134,11 +134,11 @@ strength allowed is controlled by two settings in
 
 ## Users and bots
 
-* There are several types of users in a Zulip organization: Organization
+* There are several types of users in a Zulip organization: organization
-  Owners, Organization Administrators, Members (normal users), Guests,
+  owners, organization administrators, members (normal users), guests,
-  and Bots.
+  and bots.
 
-* Owners and Administrators have the ability to deactivate and
+* Owners and administrators have the ability to deactivate and
   reactivate other human and bot users, delete streams, add/remove
   administrator privileges, as well as change configuration for the
   organization.

docs/production/settings.md

@@ -38,13 +38,13 @@ prefilled with that value.
 
 `AUTHENTICATION_BACKENDS`: Zulip supports a wide range of popular
 options for authenticating users to your server, including Google
-Auth, GitHub Auth, LDAP, SAML, REMOTE_USER, and more.
+auth, GitHub auth, LDAP, SAML, REMOTE_USER, and more.
 
 If you want an additional or different authentication backend, you
 will need to uncomment one or more and then do any additional
 configuration required for that backend as documented in the
 `settings.py` file. See the
-[section on Authentication](../production/authentication-methods.md) for more
+[section on authentication](../production/authentication-methods.md) for more
 detail on the available authentication backends and how to configure
 them.
 

docs/production/troubleshooting.md

@@ -36,7 +36,7 @@ and restart various services.
 
 ### Checking status with `supervisorctl status`
 
-You can check if the zulip application is running using:
+You can check if the Zulip application is running using:
 ```
 supervisorctl status
 ```
@@ -93,10 +93,10 @@ The Zulip application uses several major open source services to store
 and cache data, queue messages, and otherwise support the Zulip
 application:
 
-* postgresql
+* PostgreSQL
-* rabbitmq-server
+* RabbitMQ
-* nginx
+* Nginx
-* redis
+* Redis
 * memcached
 
 If one of these services is not installed or functioning correctly,
@@ -140,11 +140,11 @@ problems and how to resolve them:
     <https://linoxide.com/ubuntu-how-to/enable-disable-unattended-upgrades-ubuntu-16-04/>`_
     and instead install apt upgrades manually.  With unattended upgrades
     enabled, the moment a new Postgres release is published, your Zulip
-    server will have its postgres server upgraded (and thus restarted).
+    server will have its Postgres server upgraded (and thus restarted).
 ```
 
-Restarting one of the system services that Zulip uses (`postgres`,
+Restarting one of the system services that Zulip uses (Postgres,
-`memcached`, `redis`, or `rabbitmq`) will drop the connections that
+memcached, Redis, or Rabbitmq) will drop the connections that
 Zulip processes have to the service, resulting in future operations on
 those connections throwing errors.
 
@@ -165,8 +165,8 @@ workers are commonly idle for periods of hours or days at a time.
 You can prevent this trickle when doing a planned upgrade by
 restarting the Zulip server with
 `/home/zulip/deployments/current/scripts/restart-server` after
-installing system package updates to `postgres`, `memcached`,
+installing system package updates to Postgres, memcached,
-`rabbitmq`, or `redis`.
+RabbitMQ, or Redis.
 
 Few system administrators enjoy outages at random times (even if only
 brief) or the resulting distribution of error emails, which is why we
@@ -189,8 +189,8 @@ standard stuff:
   especially for the database and where uploads are stored.
 * Service uptime and standard monitoring for the [services Zulip
   depends on](#troubleshooting-services).  Most monitoring software
-  has standard plugins for `nginx`, `postgres`, `redis`, `rabbitmq`,
+  has standard plugins for Nginx, Postgres, Redis, RabbitMQ,
-  and `memcached`, and those will work well with Zulip.
+  and memcached, and those will work well with Zulip.
 * `supervisorctl status` showing all services `RUNNING`.
 * Checking for processes being OOM killed.
 
@@ -230,8 +230,8 @@ Database monitoring:
 * `check_fts_update_log`: Checks whether full-text search updates are
   being processed properly or getting backlogged.
 * `check_postgres`: General checks for database health.
-* `check_postgres_backup`: Checks status of postgres backups.
+* `check_postgres_backup`: Checks status of Postgres backups.
-* `check_postgres_replication_lag`: Checks whether postgres streaming
+* `check_postgres_replication_lag`: Checks whether Postgres streaming
   replication is up to date.
 
 Standard server monitoring:

docs/production/upgrade-or-modify.md

@@ -3,7 +3,7 @@
 This page explains how to upgrade, patch, or modify Zulip, including:
 
 - [Upgrading to a release](#upgrading-to-a-release)
-- [Upgrading from a git repository](#upgrading-from-a-git-repository)
+- [Upgrading from a Git repository](#upgrading-from-a-git-repository)
 - [Troubleshooting and rollback](#troubleshooting-and-rollback)
 - [Preserving local changes to configuration files](#preserving-local-changes-to-configuration-files)
 - [Upgrading the operating system](#upgrading-the-operating-system)
@@ -166,7 +166,7 @@ the version corresponding to the `restart-server` path you call.
 
 You can test whether this will happen assuming no upstream changes to
 the configuration using `scripts/zulip-puppet-apply` (without the
-`-f` option), which will do a test puppet run and output and changes
+`-f` option), which will do a test Puppet run and output and changes
 it would make. Using this list, you can save a copy of any files
 that you've modified, do the upgrade, and then restore your
 configuration.
@@ -177,7 +177,7 @@ system to Zulip Cloud.  Before making local changes to a configuration
 file, first check whether there's an option supported by
 `/etc/zulip/zulip.conf` for the customization you need.  And if you
 need to make local modifications, please report the issue so that we
-can make the Zulip puppet configuration flexible enough to handle your
+can make the Zulip Puppet configuration flexible enough to handle your
 setup.
 
 ### nginx configuration changes
@@ -195,7 +195,7 @@ some additional steps to update your Zulip installation, documented
 below.
 
 The steps are largely the same for the various OS upgrades aside from
-the versions of postgres, so you should be able to adapt these
+the versions of Postgres, so you should be able to adapt these
 instructions for other supported platforms.
 
 ### Upgrading from Ubuntu 18.04 Bionic to 20.04 Focal
@@ -226,8 +226,8 @@ instructions for other supported platforms.
     release update of Ubuntu 20.04 LTS is released.
 
     When `do-release-upgrade` asks you how to upgrade configuration
-    files for services that Zulip manages like `redis`, `postgres`,
+    files for services that Zulip manages like Redis, Postgres,
-    `nginx`, and `memcached`, the best choice is `N` to keep the
+    Nginx, and memcached, the best choice is `N` to keep the
     currently installed version.  But it's not important; the next
     step will re-install Zulip's configuration in any case.
 
@@ -357,8 +357,8 @@ instructions for other supported platforms.
    [debian-upgrade-os]: https://www.debian.org/releases/buster/amd64/release-notes/ch-upgrading.html
 
    When prompted for you how to upgrade configuration
-   files for services that Zulip manages like `redis`, `postgres`,
+   files for services that Zulip manages like Redis, Postgres,
-   `nginx`, and `memcached`, the best choice is `N` to keep the
+   Nginx, and memcached, the best choice is `N` to keep the
    currently installed version.  But it's not important; the next
    step will re-install Zulip's configuration in any case.
 

docs/subsystems/analytics.md

@@ -10,7 +10,7 @@ designed around the following goals:
 - Efficient to query so that we can display data in-app (e.g. on the streams
   page) with minimum impact on the overall performance of those pages.
 - Storage size smaller than the size of the main Message/UserMessage
-  database tables, so that we can store the data in the main postgres
+  database tables, so that we can store the data in the main Postgres
   database rather than using a specialized database platform.
 
 There are a few important things you need to understand in order to
@@ -64,7 +64,7 @@ summed to rows in InstallationCount with totals for pairs of (end_time,
 client).
 
 Note: In most cases, we do not store rows with value 0. See
-[Performance Strategy](#performance-strategy) below.
+[Performance strategy](#performance-strategy) below.
 
 ## CountStats
 

docs/subsystems/api-release-checklist.md

@@ -16,7 +16,7 @@ presented [here](https://packaging.python.org/tutorials/installing-packages/).
 
 2. Create a [source distribution][3].
 
-3. Create a [pure Python Wheel][4].
+3. Create a [pure Python wheel][4].
 
 4. [Upload][5] the distribution file(s) to [zulip-beta][6].
 

docs/subsystems/conversion.md

@@ -104,12 +104,12 @@ files from S3.  Finally, `Attachment`'s `m2m` relationship ties to
 Here are the same classes of data, listed in roughly
 decreasing order of riskiness:
 
-- Message Data (sheer volume/lack of time/security)
+- Message data (sheer volume/lack of time/security)
-- File-Related Data (S3/security/lots of moving parts)
+- File-related data (S3/security/lots of moving parts)
-- Recipient Data (complexity/security/cross-realm considerations)
+- Recipient data (complexity/security/cross-realm considerations)
-- Cross Realm Data (duplicate ids)
+- Cross realm data (duplicate ids)
-- Disjoint User Data
+- Disjoint user data
-- Public Realm Data
+- Public realm data
 
 (Note the above list is essentially in reverse order of how we
 process the data, which isn't surprising for a top-down approach.)

docs/subsystems/custom-apps.md

@@ -53,17 +53,17 @@ can be the source of the stimulus, or the target of the response,
 or both.  Along those lines, we divide custom apps into
 these three types:
 
-- A **Zulip Reader** uses activity on Zulip to stimulate an external
+- A **Zulip reader** uses activity on Zulip to stimulate an external
 response.  An example here would be a follow-up bot that sees
 messages with the alert word "@todo" on a stream and then
 adds a task to a third party todo-list tool.
 
-- A **Zulip Writer** reacts to external stimuli and generates
+- A **Zulip writer** reacts to external stimuli and generates
 Zulip responses.  An example here might be a build bot that
 gets triggered by an automated code build finishing and then
 writes "build finished" to a Zulip stream.
 
-- A **Zulip Read/Writer** reacts to a stimulus from Zulip by
+- A **Zulip reader/writer** reacts to a stimulus from Zulip by
 responding to Zulip.  An example here would be a math bot
 that sees a message saying "compute 2+2" and responds with
 "2+2=4" on the same stream or back to the user in a PM.
@@ -72,16 +72,16 @@ The above three classifications represent kind of a Zulip-centric
 view of the universe, but we should put ourselves in the shoes
 of somebody "out in the world."
 
-- A **World Reader** is an app that gets some stimulus from
+- A **world reader** is an app that gets some stimulus from
 the outside world and produces a response in Zulip.  (So, a world
 reader is a Zulip writer.)
 
-- A **World Writer** is an app that gets some stimulus from
+- A **world writer** is an app that gets some stimulus from
 Zulip and produces a response in the outside world.  (So, a world
 writer is a Zulip reader.)
 
 Some things are a little outside of the scope of this document.
-We could plausibly extend Zulip some day to host **World Reader/Writer**
+We could plausibly extend Zulip some day to host **world reader/Writer**
 apps that don't even write Zulip messages but simply use
 Zulip as a kind of middleware platform.
 
@@ -93,14 +93,14 @@ the scope of this document, we won't spend a lot of time talking
 about how to build these types of apps, but we are aware that
 any solution needs to accommodate multiple sources and targets.
 
-### World Reader/Zulip Reader
+### World reader/Zulip reader
 
 Finally, we set the stage for how we talk about custom apps in
 terms of these two broad categories:
 
-- A **World Reader** responds to stimuli from the outside world (and
+- A **world reader** responds to stimuli from the outside world (and
 typically produces a response in Zulip).
-- A **Zulip Reader** responds to stimuli from Zulip conversations (and
+- A **Zulip reader** responds to stimuli from Zulip conversations (and
 typically produces a response in the outside world).
 
 Again, we recognize that there can be overlap between those two
@@ -152,9 +152,9 @@ party corporate system based on Zulip events, I may want to deploy code
 to a public webserver or try to get my code to be part of the
 Zulip project itself.
 
-## World Reader
+## World reader
 
-A **World Reader** custom app is an app that responds to stimuli
+A **world reader** custom app is an app that responds to stimuli
 from the world outside of Zulip.  It typically functions as a **Zulip
 Writer** and posts some kind of message to a Zulip stream or user to
 alert people of world events.  Here are some example stimuli:
@@ -175,11 +175,11 @@ you basically have to solve these problems:
 ### Zulip integrations
 
 Zulip actually supports a bunch of integrations out-of-the-box that
-perform as **World Readers**.
+perform as **world readers**.
 
 The [three different integration models](https://zulip.com/api/integrations-overview#sending-content-into-zulip)
 basically differ in where they perform the main functions of a
-**World Reader**.
+**world reader**.
 
 #### Incoming webhook integrations
 
@@ -240,21 +240,21 @@ Ruby.  There are probably still some scenarios, however, where a lot of the
 logic for translation could be moved to a Zulip-side integration, and then we
 supply very thin client code for the plugin.
 
-## Zulip Reader
+## Zulip reader
 
-A **Zulip Reader** custom app gets stimuli from Zerver itself. Most
+A **Zulip reader** custom app gets stimuli from Zerver itself. Most
-**Zulip Reader** apps are packaged/advertised more as what people commonly call
+**Zulip reader** apps are packaged/advertised more as what people commonly call
 "bots" than as "integrations." (But sometimes what is currently a "bot" should really
 be deployed more like an "integration" in an ideal Zulip universe.)
 
-Example custom **Zulip Reader** apps can be serious or whimsical.
+Example custom **Zulip reader** apps can be serious or whimsical.
 
 **Serious**
 
 - A user tags a message with an alert word like `@followup` or `@ticket`.
 - A user needs help computing something, like a simple math expression
 or a timezone conversion.
-- A **World Reader** custom app posts something to a Zulip stream that we
+- A **world reader** custom app posts something to a Zulip stream that we
 want to cross-post to another external system.
 - A user wants the custom app to query the outside world, like look up the
 weather or search Wikipedia.
@@ -267,7 +267,7 @@ weather or search Wikipedia.
 - A user wants to tell the office telepresence robot to "turn left."
 
 Setting aside whether a custom app is performing a serious or whimsical
-function, there are a few different types of **Zulip Readers**:
+function, there are a few different types of **Zulip readers**:
 
 - Some readers will do simple local computations and post right back to Zulip.
 - Some readers will do more expensive/web-related computations like searching
@@ -303,7 +303,7 @@ code to your friends and have them be able to deploy it.
 - If you've written a general-use bot, it may be difficult to persuade your
 admin to give you a superuser account.
 
-We want to make it easier to deploy **Zulip Readers** on
+We want to make it easier to deploy **Zulip readers** on
 Zulip hardware.  The following document talks about how we want to enable this
 from a code structuring standpoint:
 
@@ -326,7 +326,7 @@ apps, where an app author might use the following development process:
 
 To give a concrete example, let's say that I work for a company that is
 building an issue tracker, and we want to offer Zulip support.  I would
-start by writing a **Zulip Reader** that scans for the alert word `@ticket`
+start by writing a **Zulip reader** that scans for the alert word `@ticket`
 on certain public Zulip streams, and part of that app would have logic
 to post to my company's issue-tracking API.
 
@@ -360,7 +360,7 @@ the "world" as it sees fit.
 ### Zulip-side support for reader apps
 
 Even for app authors that have access to dedicated hardware,
-there would be several advantages to running **Zulip Readers** under
+there would be several advantages to running **Zulip readers** under
 the same umbrella as the core Zulip system.
 
 - Your app will automatically inherit the uptime of the Zulip server itself (in
@@ -382,7 +382,7 @@ the problems below.  (One assumption is that we don't run apps truly
 in-process.)
 
 - **Contributions**: We need a process for users to contribute code.
-- **Configuration/Discovery**: We need Zulip to be able to find which
+- **Configuration/discovery**: We need Zulip to be able to find which
 apps are allowed to run for a particular
 deployment.  (The admin may choose to run only a subset of contributed
 apps.)

docs/subsystems/dependencies.md

@@ -103,7 +103,7 @@ on specific versions of these packages wherever possible.
 
 The exact lists of `apt` packages needed by Zulip are maintained in a
 few places:
-* For production, in our puppet configuration, `puppet/zulip/`, using
+* For production, in our Puppet configuration, `puppet/zulip/`, using
   the `Package` and `SafePackage` directives.
 * For development, in `SYSTEM_DEPENDENCIES` in `tools/lib/provision.py`.
 * The packages needed to build a Zulip virtualenv, in
@@ -113,7 +113,7 @@ few places:
   install other dependencies, and (2) because that list is shared
   between development and production.
 
-We also rely on the `pgroonga` PPA for the `pgroonga` postgres
+We also rely on the PGroonga PPA for the PGroonga Postgres
 extension, used by our [full-text search](full-text-search.md).
 
 ## Python packages

docs/subsystems/emoji.md

@@ -14,7 +14,7 @@ Currently, Zulip supports these four display formats for emoji:
 ## Emoji codes
 
 The Unicode standard has various ranges of characters set aside for
-emoji.  So you can put emoji in your terminal using actual unicode
+emoji.  So you can put emoji in your terminal using actual Unicode
 characters like 😀  and 👍.  If you paste those into Zulip, Zulip will
 render them as the corresponding emoji image.
 
@@ -48,7 +48,7 @@ etc.  However, we can't use the sprite sheets in some contexts, such
 as missed-message and digest emails, that need to have self-contained
 assets.  For those, we use individual emoji files under
 `static/generated/emoji`.  The structure of that repository contains
-both files named after the unicode representation of emoji (as actual
+both files named after the Unicode representation of emoji (as actual
 image files) as well as symlinks pointing to those emoji.
 
 We need to maintain those both for the names used in the iamcal emoji
@@ -69,7 +69,7 @@ for more details on this strategy.
 
 The emoji tree generated by this process contains several import elements:
 * `emoji_codes.json`: A set of mappings used by the Zulip frontend to
-  understand what unicode emoji exist and what their shortnames are,
+  understand what Unicode emoji exist and what their shortnames are,
   used for autocomplete, emoji pickers, etc.  This has been
   deduplicated using the logic in
   `tools/setup/emoji/emoji_setup_utils.py` to generally only have
@@ -80,7 +80,7 @@ The emoji tree generated by this process contains several import elements:
   `images/emoji/unicode/` tree.  This is used to serve individual emoji
   images, as well as for the
   [backend Markdown processor](../subsystems/markdown.md) to know which emoji
-  names exist and what unicode emoji / images they map to.  In this
+  names exist and what Unicode emoji / images they map to.  In this
   tree, we currently include all of the emoji in `emoji-map.json`;
   this means that if you send `:angry_face:`, it won't autocomplete,
   but will still work (but not in previews).
@@ -131,7 +131,7 @@ principles that were applied to the current set of names. We use (strong),
   be familiar to a large subset of users. This largely applies to certain
   faces. (medium)
 
-* The set of names should be compatible with the iamcal, gemoji, and unicode
+* The set of names should be compatible with the iamcal, gemoji, and Unicode
   names. Compatible here means that if there is an emoji name a user knows
   from one of those sets, and the user searches for the key word of that
   name, they will get an emoji in our set. It is okay if this emoji has a

docs/subsystems/markdown.md

@@ -137,8 +137,8 @@ Important considerations for any changes are:
 Zulip's Markdown processor's rendering supports a number of features
 that depend on realm-specific or user-specific data.  For example, the
 realm could have
-[Linkifiers](https://zulip.com/help/add-a-custom-linkification-filter)
+[linkifiers](https://zulip.com/help/add-a-custom-linkification-filter)
-or [Custom emoji](https://zulip.com/help/add-custom-emoji)
+or [custom emoji](https://zulip.com/help/add-custom-emoji)
 configured, and Zulip supports mentions for streams, users, and user
 groups (which depend on data like users' names, IDs, etc.).
 
@@ -248,7 +248,7 @@ accurate.
   `http://google.com`, and not `https://zulip.com/google.com` which
   is the default behavior.
 
-* Set `title=`(the url) on every link tag.
+* Set `title=`(the URL) on every link tag.
 
 * Disable link-by-reference syntax,
   `[foo][bar]` ... `[bar]: https://google.com`.

docs/subsystems/schema-migrations.md

@@ -48,7 +48,7 @@ migrations.
   to the table, performing data backfills, or building indexes. We
   have a `zerver/lib/migrate.py` library to help with adding columns
   and backfilling data.  For building indexes on these tables, we
-  should do this using SQL with postgres's CONCURRENTLY keyword.
+  should do this using SQL with Postgres's CONCURRENTLY keyword.
 
 * **Atomicity**.  By default, each Django migration is run atomically
   inside a transaction.  This can be problematic if one wants to do

docs/subsystems/typing-indicators.md

@@ -12,7 +12,7 @@ system and possibly improve it.  This document assumes that the
 client is our web app, but any client can play along with this
 protocol.
 
-Right now typing indicators are only used in "Private Messages"
+Right now typing indicators are only used in "Private messages"
 views.
 
 There are two major roles for users in this system:

docs/subsystems/users.md

@@ -35,7 +35,7 @@ All users can...
 - show up in your message stream
 - be narrowed to by clicking on recipient bars, etc.
 - be narrowed to by searches (but not suggested)
-- can show up in your "Private Messages" sidebar
+- can show up in your "Private messages" sidebar
 
 We also have the mirroring world, where we have unknown users
 that we can send PMs to, and local-echo is allowed to create

docs/testing/linters.md

@@ -17,10 +17,10 @@ prevent common coding errors.
 We borrow some open source tools for much of our linting, and the links
 below will direct you to the official documentation for these projects.
 
-- [eslint](https://eslint.org)
+- [ESLint](https://eslint.org)
 - [mypy](http://mypy-lang.org/)
 - [Prettier](https://prettier.io/)
-- [puppet](https://puppet.com/) (puppet provides its own mechanism for
+- [Puppet](https://puppet.com/) (puppet provides its own mechanism for
   validating manifests)
 - [pyflakes](https://pypi.python.org/pypi/pyflakes)
 - [stylelint](https://github.com/stylelint/stylelint)
@@ -100,11 +100,11 @@ Most of our lint checks get performed by `./tools/lint`.  These include the
 following checks:
 
 - Check Python code with pyflakes.
-- Check JavaScript and TypeScript code with eslint.
+- Check JavaScript and TypeScript code with ESLint.
 - Check CSS, JavaScript, TypeScript, and YAML formatting with Prettier.
 - Check Python code for custom Zulip rules.
 - Check non-Python code for custom Zulip rules.
-- Check puppet manifests with the puppet validator.
+- Check Puppet manifests with the Puppet validator.
 - Check HTML templates for matching tags and indentations.
 - Check CSS for parsability and formatting.
 - Check JavaScript code for addClass calls.
@@ -136,7 +136,7 @@ types of checks mostly lives [here](https://github.com/zulip/zulip/blob/master/t
 
 You can use the `-h` option for `lint` to see its usage.  One particular
 flag to take note of is the `--modified` flag, which enables you to only run
-lint checks against files that are modified in your git repo.  Most of the
+lint checks against files that are modified in your Git repo.  Most of the
 "sub-linters" respect this flag, but some will continue to process all the files.
 Generally, a good workflow is to run with `--modified` when you are iterating on
 the code, and then run without that option right before committing new code.
@@ -190,8 +190,8 @@ We check our JavaScript code in a few different ways:
 #### Puppet manifests
 
 We use Puppet as our tool to manage configuration files, using
-puppet "manifests."  To lint puppet manifests, we use the "parser validate"
+Puppet "manifests."  To lint Puppet manifests, we use the "parser validate"
-option of puppet.
+option of Puppet.
 
 #### HTML templates
 

docs/testing/manual-testing.md

@@ -181,10 +181,10 @@ For each of the above types of messages, you will want to cycle
 through the following views for Cordelia (and have Hamlet send new
 messages after each narrow):
 
-- Go to All Messages view.
+- Go to All messages view.
-- Go to Private Messages view.
+- Go to Private messages view.
-- Go to Private Messages w/Hamlet.
+- Go to Private messages w/Hamlet.
-- Go to Private Messages w/Hamlet and Othello.
+- Go to Private messages w/Hamlet and Othello.
 - Go to Verona view.
 - Go to Verona/bar view.
 - Go to Verona/foo view.
@@ -212,9 +212,9 @@ populated and where the focus is placed.
 
 - Buttons
     - Narrow to a stream and click on "New topic"
-    - Narrow "Private Messages" and click on "New topic"
+    - Narrow "Private messages" and click on "New topic"
     - Narrow to a stream and click on "New private message"
-    - Narrow "Private Messages" and click on "New private message"
+    - Narrow "Private messages" and click on "New private message"
 
 - Topics
     - Compose/send a message to a stream with no topic.
@@ -468,7 +468,7 @@ Do these tasks as Cordelia.
     - Show user list on left sidebar in narrow windows (verify by making window thinner)
     - 24-hour time (and then test going back to AM/PM)
 - Notifications
-    - Stream Message
+    - Stream message
         - turn off notifications at user level
             - create a new stream
             - have Hamlet send a message
@@ -477,7 +477,7 @@ Do these tasks as Cordelia.
             - have Hamlet send a message
             - then turn off notifications for that stream
             - have Hamlet send another message
-    - Private Messages and @-mentions
+    - Private messages and @-mentions
         - Test Desktop/Audible options
         - You can ignore other stuff for now
 - Bots/API key

docs/testing/philosophy.md

@@ -66,9 +66,9 @@ these goals, but a few techniques are worth highlighting:
   outgoing HTTP requests are required to test something, we mock the
   responses with libraries like `responses`.
 * We carefully avoid the potential for contamination of data inside
-  services like postgres, redis, and memcached from different tests.
+  services like Postgres, Redis, and memcached from different tests.
     * Every test case prepends a unique random prefix to all keys it
-      uses when accessing redis and memcached.
+      uses when accessing Redis and memcached.
     * Every test case runs inside a database transaction, which is
       aborted after the test completes.  Each test process interacts
       only with a fresh copy of a special template database used for

docs/testing/testing-with-node.md

@@ -203,7 +203,7 @@ These instructions assume you're using the Vagrant development environment.
         1. In the `Configure Node.js Remote Interpreter`, window select `Vagrant`
         1. Wait for WebStorm to connect to Vagrant. This will be displayed
            by the `Vagrant Host URL` section updating to contain the Vagrant
-           SSH url, e.g. `ssh://vagrant@127.0.0.1:2222`.
+           SSH URL, e.g. `ssh://vagrant@127.0.0.1:2222`.
         1. **Set the `Node.js interpreter path` to `/usr/local/bin/node`**
         1. Hit `OK` 2 times to get back to the `Run/Debug Configurations` window.
     1. Under `Working Directory` select the root `zulip` directory.

docs/testing/testing-with-puppeteer.md

@@ -22,7 +22,7 @@ The test files live in `frontend_tests/puppeteer_tests` and make use
 of various useful helper functions defined in
 `frontend_tests/puppeteer_lib/common.js`.
 
-## How puppeteer tests work
+## How Puppeteer tests work
 
 The Puppeteer tests use a real Chromium browser (powered by
 [puppeteer](https://github.com/puppeteer/puppeteer)), connected to a
@@ -93,7 +93,7 @@ These tools/features are often useful when debugging:
   debugging test failures.
 * TODO: Mention how to access Puppeteer screenshots in CI.
 * TODO: Add an option for using the `headless: false` debugging mode
-  of puppeteer so you can watch what's happening, and document how to
+  of Puppeteer so you can watch what's happening, and document how to
   make that work with Vagrant.
 * TODO: Document `--interactive`.
 * TODO: Document how to run 100x in CI to check for nondeterminstic
@@ -108,7 +108,7 @@ These tools/features are often useful when debugging:
   includes the console output for the server; any Python exceptions
   are likely actual bugs in the changes being tested.
 
-See also [puppeteer upstream's debugging
+See also [Puppeteer upstream's debugging
 tips](https://github.com/puppeteer/puppeteer#debugging-tips); some
 tips may require temporary patches to functions like `run_test` or
 `ensure_browser` in `frontend_tests/puppeteer_lib/common.js`.
@@ -153,4 +153,3 @@ notes above:
   `zilencer/management/commands/populate_db.py`.
 
 [learn-async-await]: https://developer.mozilla.org/en-US/docs/Learn/JavaScript/Asynchronous/Async_await
-

docs/testing/testing.md

@@ -136,7 +136,7 @@ code paths (`httplib2.Http().request`, `requests.request`, etc.) to
 throw an exception in the backend tests.  While this is enforcement is
 not complete (there a lot of other ways to use the Internet from
 Python), it is easy to do and catches most common cases of new code
-dependning on Internet access.
+depending on Internet access.
 
 This enforcement code results in the following exception:
 

docs/translating/german.md

@@ -137,7 +137,7 @@ Since we try to avoid concatenating words whenever possible, don't use
 "Privatnachricht" . PN is the officially used abbreviation for
 "Private Nachricht" and is used in many German chat forums.
 
-*"Private Nachricht" (Youtube, Transifex)*
+*"Private Nachricht" (YouTube, Transifex)*
 
 * Starred Message - **Markierte Nachricht**
 
@@ -260,7 +260,7 @@ works as well, but is not that common in German.
 
 This translation is unambiguous.
 
-*"Deabonnieren" (Youtube, Transifex)*
+*"Deabonnieren" (YouTube, Transifex)*
 
 * Narrow to - **Begrenzen auf**
 
@@ -293,7 +293,7 @@ preferable due to its brevity.
 
 * Search - **Suchen**
 
-*"Suchen" (Youtube, Google, Facebook, Transifex)*
+*"Suchen" (YouTube, Google, Facebook, Transifex)*
 
 * Pin/Unpin - **Anpinnen/Loslösen**
 

docs/translating/translating.md

@@ -99,7 +99,7 @@ There are a few ways to see your translations in the Zulip UI:
   out the language the user requests in a browser using the following
   prioritization (mostly copied from the Django docs):
 
-  1. It looks for the language code as a url prefix (e.g. `/de/login/`).
+  1. It looks for the language code as a URL prefix (e.g. `/de/login/`).
   2. It looks for the `LANGUAGE_SESSION_KEY` key in the current user's
      session (the Zulip language UI option ends up setting this).
   3. It looks for the cookie named 'django_language'. You can set a

docs/tutorials/life-of-a-request.md

@@ -16,7 +16,7 @@ application will serve the request (or deciding to serve the request
 itself for static content).
 
 In development, `tools/run-dev.py` fills the role of nginx. Static files
-are in your git checkout under `static`, and are served unminified.
+are in your Git checkout under `static`, and are served unminified.
 
 ## Static files are [served directly][served-directly] by Nginx
 
@@ -167,7 +167,7 @@ its url patterns (see
 [zerver/lib/rest.py](https://github.com/zulip/zulip/blob/master/zerver/lib/rest.py))
 so that the action called is `rest_dispatch`. This method will
 authenticate the user, either through a session token from a cookie,
-or from an `email:api-key` string given via HTTP Basic Auth for API
+or from an `email:api-key` string given via HTTP basic auth for API
 clients.
 
 It will then look up what HTTP verb was used (GET, POST, etc) to make

docs/tutorials/new-feature-tutorial.md

@@ -147,7 +147,7 @@ document it and update any existing documentation that might be
 relevant to the new feature. For more information on the kinds of
 documentation Zulip has, see [Documentation](../documentation/overview.md).
 
-## Example Feature
+## Example feature
 
 This example describes the process of adding a new setting to Zulip: a
 flag that allows an admin to require topics on stream messages (the default

docs/tutorials/writing-views.md

@@ -112,7 +112,7 @@ which is documented in detail at
 [zerver/lib/rest.py](https://github.com/zulip/zulip/blob/master/zerver/lib/rest.py).
 This method will authenticate the user either through a session token
 from a cookie on the browser, or from a base64 encoded `email:api-key`
-string given via HTTP Basic Auth for API clients.
+string given via HTTP basic auth for API clients.
 
 ``` py
 >>> import requests

frontend_tests/node_tests/buddy_data.js

@@ -223,7 +223,7 @@ run_test("title_data", () => {
     };
     assert.deepEqual(buddy_data.get_title_data(bot.user_id, is_group), expected_group_data);
 
-    // Individual Users.
+    // Individual users.
     user_status.set_status_text({
         user_id: me.user_id,
         status_text: "out to lunch",

frontend_tests/node_tests/general.js

@@ -369,7 +369,7 @@ run_test("update_user_event", (override) => {
    that happen during an event.  This concept is called "mocking",
    and you can find libraries to help do mocking.  Here we will
    just build our own lightweight mocking system, which is almost
-   trivially easy to do in a language like Javascript.
+   trivially easy to do in a language like JavaScript.
 
 */
 

frontend_tests/node_tests/markdown.js

@@ -223,11 +223,11 @@ run_test("markdown_detection", () => {
         "https://zulip.com/image.jpg too",
         "Contains a zulip.com/foo.jpeg file",
         "Contains a https://zulip.com/image.png file",
-        "twitter url https://twitter.com/jacobian/status/407886996565016579",
+        "Twitter URL https://twitter.com/jacobian/status/407886996565016579",
         "https://twitter.com/jacobian/status/407886996565016579",
         "then https://twitter.com/jacobian/status/407886996565016579",
-        "twitter url http://twitter.com/jacobian/status/407886996565016579",
+        "Twitter URL http://twitter.com/jacobian/status/407886996565016579",
-        "youtube url https://www.youtube.com/watch?v=HHZ8iqswiCw&feature=youtu.be&a",
+        "YouTube URL https://www.youtube.com/watch?v=HHZ8iqswiCw&feature=youtu.be&a",
     ];
 
     no_markup.forEach((content) => {
@@ -475,7 +475,7 @@ run_test("marked", () => {
                 '<p><span aria-label="smile" class="emoji emoji-1f642" role="img" title="smile">:smile:</span></p>',
             translate_emoticons: true,
         },
-        // Test HTML Escape in Custom Zulip Rules
+        // Test HTML escaping in custom Zulip rules
         {
             input: "@**<h1>The Rogue One</h1>**",
             expected: "<p>@**&lt;h1&gt;The Rogue One&lt;/h1&gt;**</p>",

frontend_tests/node_tests/typeahead.js

@@ -48,33 +48,33 @@ run_test("get_emoji_matcher", () => {
 
 run_test("triage", () => {
     const alice = {name: "alice"};
-    const Alicia = {name: "Alicia"};
+    const alicia = {name: "Alicia"};
     const steve = {name: "steve"};
-    const Stephanie = {name: "Stephanie"};
+    const stephanie = {name: "Stephanie"};
 
-    const names = [alice, Alicia, steve, Stephanie];
+    const names = [alice, alicia, steve, stephanie];
 
     assert.deepEqual(
         typeahead.triage("a", names, (r) => r.name),
         {
-            matches: [alice, Alicia],
+            matches: [alice, alicia],
-            rest: [steve, Stephanie],
+            rest: [steve, stephanie],
         },
     );
 
     assert.deepEqual(
         typeahead.triage("A", names, (r) => r.name),
         {
-            matches: [Alicia, alice],
+            matches: [alicia, alice],
-            rest: [steve, Stephanie],
+            rest: [steve, stephanie],
         },
     );
 
     assert.deepEqual(
         typeahead.triage("S", names, (r) => r.name),
         {
-            matches: [Stephanie, steve],
+            matches: [stephanie, steve],
-            rest: [alice, Alicia],
+            rest: [alice, alicia],
         },
     );
 
@@ -82,7 +82,7 @@ run_test("triage", () => {
         typeahead.triage("fred", names, (r) => r.name),
         {
             matches: [],
-            rest: [alice, Alicia, steve, Stephanie],
+            rest: [alice, alicia, steve, stephanie],
         },
     );
 });

frontend_tests/node_tests/typeahead_helper.js

@@ -143,7 +143,7 @@ run_test("sort_languages", () => {
 
 const a_bot = {
     email: "a_bot@zulip.com",
-    full_name: "A zulip test bot",
+    full_name: "A Zulip test bot",
     is_admin: false,
     is_bot: true,
     user_id: 1,
@@ -151,7 +151,7 @@ const a_bot = {
 
 const a_user = {
     email: "a_user@zulip.org",
-    full_name: "A zulip user",
+    full_name: "A Zulip user",
     is_admin: false,
     is_bot: false,
     user_id: 2,

frontend_tests/puppeteer_tests/04-subscriptions.js

@@ -123,7 +123,7 @@ async function create_stream(page) {
     await page.waitForXPath('//*[text()="Create stream"]', {visible: true});
     await common.fill_form(page, "form#stream_creation_form", {
         stream_name: "Puppeteer",
-        stream_description: "Everything puppeteer",
+        stream_description: "Everything Puppeteer",
     });
     await page.click(await stream_span(page, "Scotland")); //  Subscribes all users from Scotland
     await page.click(await user_span(page, "cordelia")); // Add cordelia.
@@ -142,7 +142,7 @@ async function create_stream(page) {
     );
     const subscriber_count_selector = "[data-stream-name='Puppeteer'] .subscriber-count";
     assert.strictEqual(stream_name, "Puppeteer");
-    assert.strictEqual(stream_description, "Everything puppeteer");
+    assert.strictEqual(stream_description, "Everything Puppeteer");
 
     // Assert subscriber count becomes 5(scotland(+4), cordelia(+1), othello(-1), Desdemona(+1)).
     await page.waitForFunction(

frontend_tests/puppeteer_tests/07-navigation.js

@@ -78,7 +78,7 @@ async function navigation_tests(page) {
     await navigate_to(page, verona_narrow, "message_feed_container");
 
     // Hardcoded this instead of using `navigate_to`
-    // as puppeteer cannot click hidden elements.
+    // as Puppeteer cannot click hidden elements.
     await page.evaluate(() => $("a[href='#message_feed_container]'").click());
     await wait_for_tab(page, "message_feed_container");
 

frontend_tests/zjsunit/mdiff.js

@@ -10,7 +10,7 @@
  * Based on diffing library difflib, a js port of the python library.
  *
  * The sole exported function diff_strings(string_0, string_1) returns a pretty-printed
- * unicode string containing their diff.
+ * Unicode string containing their diff.
  */
 
 const difflib = require("difflib");

puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_rabbitmq_consumers

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 """
-Nagios plugin to check that the rabbitmq has the correct number of consumers.
+Nagios plugin to check that the RabbitMQ has the correct number of consumers.
 
 This script just checks the contents of /var/lib/nagios_state/check-rabbitmq-consumers,
 which is generated by scripts/nagios/check-rabbitmq-consumers.

puppet/zulip/files/nagios_plugins/zulip_app_frontend/check_rabbitmq_queues

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 """
-Nagios plugin to check that the rabbitmq queues are not overflowing as a result
+Nagios plugin to check that the RabbitMQ queues are not overflowing as a result
 of a stuck consumer.
 
 This script just checks the contents of /var/lib/nagios_state/check-rabbitmq-results,

puppet/zulip/files/nagios_plugins/zulip_postgres_appdb/check_postgres_replication_lag

@@ -2,7 +2,7 @@
 
 """Nagios plugin to check the difference between the primary and
 replica Postgres servers' xlog location.  Requires that the user this
-connects to postgres as has been granted the `pg_monitor` role.
+connects to Postgres as has been granted the `pg_monitor` role.
 
 """
 import re

puppet/zulip/files/postgresql/process_fts_updates

@@ -1,10 +1,10 @@
 #!/usr/bin/env python3
-# Processes updates to postgres Full Text Search for new/edited messages.
+# Processes updates to Postgres full-text search for new/edited messages.
 #
-# Zulip manages its postgres full-text search as follows.  When the
+# Zulip manages its Postgres full-text search as follows.  When the
-# content of a message is modified, a postgres trigger logs the
+# content of a message is modified, a Postgres trigger logs the
 # message ID to the `fts_update_log` table.  In the background, this
-# program processes `fts_update_log`, updating the postgres full-text
+# program processes `fts_update_log`, updating the Postgres full-text
 # search column search_tsvector in the main zerver_message.
 import sys
 
@@ -88,12 +88,12 @@ try:
     USING_PGROONGA = settings.USING_PGROONGA
 except ImportError:
     # process_fts_updates also supports running locally on a remote
-    # postgres server; in that case, one can just connect to localhost
+    # Postgres server; in that case, one can just connect to localhost
     USING_PGROONGA = False
 
 # Since we don't want a hard dependency on being able to access the
 # Zulip settings (as we may not be running on a server that has that
-# data), we determine whether we're using pgroonga using
+# data), we determine whether we're using PGroonga using
 # /etc/zulip/zulip.conf.
 #
 # However, we still also check the `USING_PGROONGA` variable, since

puppet/zulip/manifests/app_frontend_base.pp

@@ -9,7 +9,7 @@ class zulip::app_frontend_base {
 
   if $::osfamily == 'debian' {
     # Upgrade and other tooling wants to be able to get a database
-    # shell.  This is not necessary on CentOS because the postgresql
+    # shell.  This is not necessary on CentOS because the PostgreSQL
     # package already includes the client.  This may get us a more
     # recent client than the database server is configured to be,
     # ($zulip::postgres_common::version), but they're compatible.

puppet/zulip/manifests/base.pp

@@ -34,7 +34,7 @@ class zulip::base {
         # Used in scripts including install-yarn.sh
         'curl',
         'wget',
-        # Used to read /etc/zulip/zulip.conf for `zulipconf` puppet function
+        # Used to read /etc/zulip/zulip.conf for `zulipconf` Puppet function
         'crudini',
         # Used for tools like sponge
         'moreutils',
@@ -42,7 +42,7 @@ class zulip::base {
         $zulip::common::nagios_plugins,
         # Required for using HTTPS in apt repositories.
         'apt-transport-https',
-        # Needed for the cron jobs installed by puppet
+        # Needed for the cron jobs installed by Puppet
         'cron',
       ]
     }

puppet/zulip/manifests/dockervoyager.pp

@@ -1,6 +1,6 @@
 # This class includes all the modules you need to install/run a Zulip installation
-# in a single container (without the database, memcached, redis services).
+# in a single container (without the database, memcached, Redis services).
-# The database, memcached, redis services need to be run in separate containers.
+# The database, memcached, Redis services need to be run in separate containers.
 # Through this split of services, it is easier to scale the services to the needs.
 class zulip::dockervoyager {
   include zulip::base

puppet/zulip/manifests/postgres_appdb_base.pp

@@ -1,4 +1,4 @@
-# Minimal shared configuration needed to run a Zulip postgres database.
+# Minimal shared configuration needed to run a Zulip Postgres database.
 class zulip::postgres_appdb_base {
   include zulip::postgres_common
   include zulip::process_fts_updates
@@ -33,7 +33,7 @@ class zulip::postgres_appdb_base {
       $pgroonga_setup_sql_path = "${postgres_sharedir}/pgroonga_setup.sql"
       $setup_system_deps = 'setup_yum_repo'
       $postgres_restart = "systemctl restart postgresql-${zulip::postgres_common::version}"
-      # TODO Since we can't find the postgres dicts directory on CentOS yet, we
+      # TODO Since we can't find the Postgres dicts directory on CentOS yet, we
       # link directly to the hunspell directory.
       $postgres_dict_dict = '/usr/share/myspell/en_US.dic'
       $postgres_dict_affix = '/usr/share/myspell/en_US.aff'

puppet/zulip/manifests/rabbit.pp

@@ -3,7 +3,7 @@ class zulip::rabbit {
     'debian' => 'erlang-base',
     'redhat' => 'erlang',
   }
-  $rabbit_packages = [# Needed to run rabbitmq
+  $rabbit_packages = [# Needed to run RabbitMQ
                       $erlang,
                       'rabbitmq-server',
                       ]

puppet/zulip/manifests/tornado_sharding.pp

@@ -6,7 +6,7 @@ class zulip::tornado_sharding {
   # The file entries below serve only to initialize the sharding config files
   # with the correct default content for the "only one shard" setup. For this
   # reason they use "replace => false", because the files are managed by
-  # the sharding script afterwards and puppet shouldn't overwrite them.
+  # the sharding script afterwards and Puppet shouldn't overwrite them.
   file { '/etc/zulip/nginx_sharding.conf':
     ensure  => file,
     owner   => 'root',

puppet/zulip/templates/postfix/main.cf.erb

@@ -1,4 +1,4 @@
-# This file is managed by puppet; local changes will be overridden.
+# This file is managed by Puppet; local changes will be overridden.
 
 smtpd_banner = $myhostname ESMTP $mail_name (Zulip)
 biff = no

puppet/zulip_ops/files/munin-plugins/tornado_event_queues

@@ -4,7 +4,7 @@
 #
 # Usage: Link or copy into /etc/munin/node.d/
 #
-# No Parameters
+# No parameters
 #
 # Magic markers (optional - only used by munin-config and some
 # installation scripts):

puppet/zulip_ops/files/nagios3/conf.d/hostgroups.cfg

@@ -1,7 +1,7 @@
 # A simple wildcard hostgroup
 define hostgroup {
         hostgroup_name  all
-        alias           All Servers
+        alias           All servers
         members         *
         }
 
@@ -17,70 +17,70 @@ define hostgroup {
 
 define hostgroup {
         hostgroup_name  web
-        alias           Web Servers
+        alias           Web servers
         }
 
 define hostgroup {
         hostgroup_name  frontends
-        alias           Frontend Web Servers
+        alias           Frontend web servers
         }
 
 define hostgroup {
         hostgroup_name  staging_frontends
-        alias           Staging Frontend Web Servers
+        alias           Staging frontend web servers
         }
 
 define hostgroup {
         hostgroup_name  prod_frontends
-        alias           Production Frontend Web Servers
+        alias           Production frontend web servers
         }
 
 define hostgroup {
         hostgroup_name  multitornado_frontends
-        alias           Frontend Web Servers with multiple Tornado processes
+        alias           Frontend web servers with multiple Tornado processes
         }
 
 define hostgroup {
         hostgroup_name  singletornado_frontends
-        alias           Frontend Web Servers with a single Tornado process
+        alias           Frontend web servers with a single Tornado process
         }
 
 define hostgroup {
         hostgroup_name    redis
-        alias             Redis Servers
+        alias             Redis servers
         hostgroup_members  frontends
         }
 
 define hostgroup {
         hostgroup_name  zmirror
-        alias           Zephyr Mirror Servers
+        alias           Zephyr mirror servers
         }
 
 define hostgroup {
         hostgroup_name  zmirrorp
-        alias           Zephyr Mirror Personals Servers
+        alias           Zephyr mirror personals servers
         }
 
 define hostgroup {
         hostgroup_name  zmirror_main
-        alias           Zephyr Mirror Main Servers
+        alias           Zephyr mirror main servers
         }
 
 define hostgroup {
        hostgroup_name     postgres
-       alias              PostgreSQL Servers
+       alias              PostgreSQL servers
        hostgroup_members  postgres_appdb
        }
 
 define hostgroup {
        hostgroup_name     postgres_appdb
-       alias              PostgreSQL App Servers
+       alias              PostgreSQL app servers
        hostgroup_members  postgres_appdb_primary
        }
 
 define hostgroup {
        hostgroup_name  postgres_appdb_primary
-       alias           Primary PostgreSQL App Servers
+       alias           Primary PostgreSQL app servers
        }
 
 define hostgroup {

puppet/zulip_ops/files/nagios3/conf.d/services.cfg

@@ -156,7 +156,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres autovac_freeze
+        service_description             Check Postgres autovac_freeze
         check_command                   check_postgres!zulip!nagios!autovac_freeze
         hostgroup                       postgres_appdb_primary
         contact_groups                  admins
@@ -164,7 +164,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres backends
+        service_description             Check Postgres backends
         check_command                   check_postgres!zulip!nagios!backends
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -172,7 +172,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres connection
+        service_description             Check Postgres connection
         check_command                   check_postgres!zulip!nagios!connection
         hostgroup                       postgres_appdb
         contact_groups                  page_admins
@@ -180,7 +180,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres disabled triggers
+        service_description             Check Postgres disabled triggers
         check_command                   check_postgres!zulip!nagios!disabled_triggers
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -188,7 +188,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres hitratio
+        service_description             Check Postgres hitratio
         check_command                   check_postgres!zulip!nagios!hitratio
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -196,7 +196,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres locks
+        service_description             Check Postgres locks
         check_command                   check_postgres_alert_args!zulip!nagios!locks!400!600
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -204,7 +204,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres query_time
+        service_description             Check Postgres query_time
         check_command                   check_postgres_alert_args!zulip!nagios!query_time!20 seconds!40 seconds
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -212,7 +212,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres sequence
+        service_description             Check Postgres sequence
         check_command                   check_postgres!zulip!nagios!sequence
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -220,7 +220,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres timesync
+        service_description             Check Postgres timesync
         check_command                   check_postgres!zulip!nagios!timesync
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -228,7 +228,7 @@ define service {
 
 # define service {
 #         use                             generic-service
-#         service_description             Check postgres txn_idle
+#         service_description             Check Postgres txn_idle
 #         check_command                   check_postgres_alert_args!zulip!nagios!txn_idle!20 seconds!40 seconds
 #         hostgroup                       postgres_appdb
 #         contact_groups                  admins
@@ -236,7 +236,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check postgres txn_time
+        service_description             Check Postgres txn_time
         check_command                   check_postgres_alert_args!zulip!nagios!txn_time!20 seconds!40 seconds
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -252,7 +252,7 @@ define service {
 
 define service{
         use                             generic-service
-        service_description             Check postgres replication lag
+        service_description             Check Postgres replication lag
         check_command                   check_postgres_replication_lag
         hostgroup                       postgres_appdb
         contact_groups                  admins
@@ -288,7 +288,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq queue sizes
+        service_description             Check RabbitMQ queue sizes
         check_command                   check_rabbitmq_queues!22
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -307,7 +307,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq notify_tornado consumers
+        service_description             Check RabbitMQ notify_tornado consumers
         check_command                   check_rabbitmq_consumers!notify_tornado
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -318,7 +318,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq user_activity_interval consumers
+        service_description             Check RabbitMQ user_activity_interval consumers
         check_command                   check_rabbitmq_consumers!user_activity_interval
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -329,7 +329,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq user_presence consumers
+        service_description             Check RabbitMQ user_presence consumers
         check_command                   check_rabbitmq_consumers!user_presence
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -340,7 +340,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq invites consumers
+        service_description             Check RabbitMQ invites consumers
         check_command                   check_rabbitmq_consumers!invites
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -351,7 +351,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq signups consumers
+        service_description             Check RabbitMQ signups consumers
         check_command                   check_rabbitmq_consumers!signups
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -362,7 +362,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq digest email consumers
+        service_description             Check RabbitMQ digest email consumers
         check_command                   check_rabbitmq_consumers!digest_emails
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -373,7 +373,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq email mirror consumers
+        service_description             Check RabbitMQ email mirror consumers
         check_command                   check_rabbitmq_consumers!email_mirror
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -384,7 +384,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq missedmessage mobile notifications consumers
+        service_description             Check RabbitMQ missedmessage mobile notifications consumers
         check_command                   check_rabbitmq_consumers!missedmessage_mobile_notifications
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -395,7 +395,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq missedmessage email consumers
+        service_description             Check RabbitMQ missedmessage email consumers
         check_command                   check_rabbitmq_consumers!missedmessage_email
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet
@@ -406,7 +406,7 @@ define service {
 
 define service {
         use                             generic-service
-        service_description             Check rabbitmq user activity consumers
+        service_description             Check RabbitMQ user activity consumers
         check_command                   check_rabbitmq_consumers!user_activity
         # Workaround weird checks 40s after first error causing alerts
         # from a single failure because cron hasn't run again yet

puppet/zulip_ops/manifests/base.pp

@@ -190,8 +190,8 @@ class zulip_ops::base {
     ensure     => running,
 
     # Because there is no running process for this service, the normal status
-    # checks fail.  Because puppet then thinks the service has been manually
+    # checks fail.  Because Puppet then thinks the service has been manually
-    # stopped, it won't restart it.  This fake status command will trick puppet
+    # stopped, it won't restart it.  This fake status command will trick Puppet
     # into thinking the service is *always* running (which in a way it is, as
     # iptables is part of the kernel.)
     hasstatus  => true,

requirements/common.in

@@ -23,7 +23,7 @@ jsx-lexer
 # Needed for manage.py
 ipython
 
-# Needed for Image Processing
+# Needed for image processing
 Pillow
 
 # Needed for building complex DB queries
@@ -59,7 +59,7 @@ httplib2
 # Forked to avoid pulling in scipy: https://github.com/mailgun/talon/issues/130
 https://github.com/zulip/talon/archive/7d8bdc4dbcfcc5a73298747293b99fe53da55315.zip#egg=talon==1.2.10.zulip1
 
-# Needed for hipchat import
+# Needed for HipChat import
 hypchat
 
 # Needed for inlining the CSS in emails
@@ -71,7 +71,7 @@ PyJWT
 # Needed for including other Markdown files for user docs
 markdown-include
 
-# Needed to access rabbitmq
+# Needed to access RabbitMQ
 pika
 
 # Needed to access our database
@@ -89,7 +89,7 @@ python-dateutil
 # Needed for timezone work
 pytz
 
-# Needed for redis
+# Needed for Redis
 redis
 
 # Needed to parse source maps for error reporting

scripts/lib/clean-unused-caches

@@ -9,7 +9,7 @@ from scripts.lib.zulip_tools import parse_cache_script_args
 
 
 def main() -> None:
-    args = parse_cache_script_args("This script cleans unused zulip caches.")
+    args = parse_cache_script_args("This script cleans unused Zulip caches.")
     os.chdir(ZULIP_PATH)
     clean_venv_cache.main(args)
     clean_node_cache.main(args)

scripts/lib/clean_emoji_cache.py

@@ -43,5 +43,5 @@ def main(args: argparse.Namespace) -> None:
         EMOJI_CACHE_PATH, caches_in_use, "emoji cache", args)
 
 if __name__ == "__main__":
-    args = parse_cache_script_args("This script cleans unused zulip emoji caches.")
+    args = parse_cache_script_args("This script cleans unused Zulip emoji caches.")
     main(args)

scripts/lib/clean_node_cache.py

@@ -46,5 +46,5 @@ def main(args: argparse.Namespace) -> None:
         NODE_MODULES_CACHE_PATH, caches_in_use, "node modules cache", args)
 
 if __name__ == "__main__":
-    args = parse_cache_script_args("This script cleans unused zulip npm caches.")
+    args = parse_cache_script_args("This script cleans unused Zulip npm caches.")
     main(args)

scripts/lib/clean_venv_cache.py

@@ -54,5 +54,5 @@ def main(args: argparse.Namespace) -> None:
         VENV_CACHE_DIR, caches_in_use, "venv cache", args)
 
 if __name__ == "__main__":
-    args = parse_cache_script_args("This script cleans unused zulip venv caches.")
+    args = parse_cache_script_args("This script cleans unused Zulip venv caches.")
     main(args)

scripts/lib/email-mirror-postfix

@@ -6,13 +6,13 @@ forwarding emails into Zulip.
 https://zulip.readthedocs.io/en/latest/production/settings.html#email-gateway
 
 The email gateway supports two major modes of operation: An email
-server (using postfix) where the email address configured in
+server (using Postfix) where the email address configured in
 EMAIL_GATEWAY_PATTERN delivers emails directly to Zulip (this) or a
 cron job that connects to an IMAP inbox (which receives the emails)
 periodically.
 
-Zulip's puppet configuration takes care of configuring postfix to
+Zulip's Puppet configuration takes care of configuring Postfix to
-execute this script when emails are received by postfix, piping the
+execute this script when emails are received by Postfix, piping the
 email content via standard input (and the destination email address in
 the ORIGINAL_RECIPIENT environment variable).
 
@@ -65,7 +65,7 @@ parser.add_argument('-d', '--dst-host', dest="host", default='https://127.0.0.1'
                          "Address must contain a HTTP protocol.")
 
 parser.add_argument('-u', '--dst-url', dest="url", default='/email_mirror_message',
-                    help="Destination relative url for uploading email from email mirror.")
+                    help="Destination relative URL for uploading email from email mirror.")
 
 parser.add_argument('-n', '--not-verify-ssl', dest="verify_ssl", action='store_false',
                     help="Disable ssl certificate verifying for self-signed certificates")

scripts/lib/install

@@ -121,7 +121,7 @@ fi
 read -r -a APT_OPTIONS <<<"${APT_OPTIONS:-}"
 # Install additional packages.
 read -r -a ADDITIONAL_PACKAGES <<<"${ADDITIONAL_PACKAGES:-}"
-# Comma-separated list of puppet manifests to install.  default is
+# Comma-separated list of Puppet manifests to install.  default is
 # zulip::voyager for an all-in-one system or zulip::dockervoyager for
 # Docker.  Use e.g. zulip::app_frontend for a Zulip frontend server.
 PUPPET_CLASSES="${PUPPET_CLASSES:-zulip::voyager}"
@@ -234,8 +234,8 @@ fi
 case ",$PUPPET_CLASSES," in
     *,zulip::voyager,* | *,zulip::postgres_appdb_tuned,*)
         if [ "$package_system" = apt ]; then
-            # We're going to install Postgres from the postgres apt
+            # We're going to install Postgres from the Postgres apt
-            # repository; this may conflict with the existing postgres.
+            # repository; this may conflict with the existing Postgres.
             OTHER_PG="$(dpkg --get-selections \
                 | grep -E '^postgresql-[0-9]+\s+install$' \
                 | grep -v "^postgresql-$POSTGRES_VERSION\b" \
@@ -405,7 +405,7 @@ EOF
         --classfile=/var/lib/puppet/classes.txt \
         >/dev/null
 
-    # We only need the postgres version setting on database hosts; but
+    # We only need the Postgres version setting on database hosts; but
     # we don't know if this is a database host until we have the catalog summary.
     if ! has_class "zulip::postgres_common" || [ "$package_system" != apt ]; then
         crudini --del /etc/zulip/zulip.conf postgresql
@@ -511,7 +511,7 @@ if has_class "zulip::app_frontend_base"; then
     chown -R zulip:zulip /home/zulip /var/log/zulip /etc/zulip/settings.py
 
     if ! [ -e "/home/zulip/prod-static/generated" ]; then
-        # If we're installing from a git checkout, we need to run
+        # If we're installing from a Git checkout, we need to run
         # `tools/update-prod-static` in order to build the static
         # assets.
         su zulip -c '/home/zulip/deployments/current/tools/update-prod-static'
@@ -525,7 +525,7 @@ if [ -n "$NO_INIT_DB" ]; then
  Success!
 
  Stopping because --no-init-db was passed.
- To complete the installation, configure postgres and then run:
+ To complete the installation, configure Postgres and then run:
 
    su zulip -c '/home/zulip/deployments/current/scripts/setup/initialize-database'
    su zulip -c '/home/zulip/deployments/current/manage.py generate_realm_creation_link'

scripts/lib/upgrade-zulip-stage-2

@@ -199,19 +199,19 @@ elif args.from_git:
         logging.info("Shutting down server to build static assets on a low-RAM system.")
         shutdown_server()
 
-    # Note: The fact that this is before we apply puppet changes means
+    # Note: The fact that this is before we apply Puppet changes means
-    # that we don't support adding new puppet dependencies of
+    # that we don't support adding new Puppet dependencies of
-    # update-prod-static with the git upgrade process.  But it'll fail
+    # update-prod-static with the Git upgrade process.  But it'll fail
     # safely; this seems like a worthwhile tradeoff to minimize downtime.
     logging.info("Building static assets...")
     subprocess.check_call(["./tools/update-prod-static", "--prev-deploy=" +
                            os.path.join(DEPLOYMENTS_DIR, 'current')],
                           preexec_fn=su_to_zulip)
-    logging.info("Caching zulip git version...")
+    logging.info("Caching Zulip Git version...")
     subprocess.check_call(["./tools/cache-zulip-git-version"], preexec_fn=su_to_zulip)
 else:
     # Since this doesn't do any actual work, it's likely safe to have
-    # this run before we apply puppet changes (saving a bit of downtime).
+    # this run before we apply Puppet changes (saving a bit of downtime).
     logging.info("Installing static assets...")
     subprocess.check_call(["cp", "-rT", os.path.join(deploy_path, 'prod-static/serve'),
                            '/home/zulip/prod-static'], preexec_fn=su_to_zulip)
@@ -252,12 +252,12 @@ if os.path.exists("/etc/supervisor/conf.d/zulip_db.conf"):
 
 if (not args.skip_puppet or migrations_needed) and IS_SERVER_UP:
     # By default, we shut down the service to apply migrations and
-    # puppet changes, to minimize risk of issues due to inconsistent
+    # Puppet changes, to minimize risk of issues due to inconsistent
     # state.
     shutdown_server()
 
 if not args.skip_puppet:
-    logging.info("Applying puppet changes...")
+    logging.info("Applying Puppet changes...")
     subprocess.check_call(["./scripts/zulip-puppet-apply", "--force"])
     subprocess.check_call(["apt-get", "-y", "upgrade"])
 
@@ -283,5 +283,5 @@ else:
     logging.info("Skipping purging old deployments.")
 
 if args.skip_puppet:
-    logging.info("Showing un-applied puppet changes:")
+    logging.info("Showing un-applied Puppet changes:")
     subprocess.check_call(["./scripts/zulip-puppet-apply", "--noop", "--show_diff"])

scripts/setup/generate_secrets.py

@@ -124,7 +124,7 @@ def generate_secrets(development: bool = False) -> None:
             if settings.MEMCACHED_LOCATION == "127.0.0.1:11211":
                 add_secret("memcached_password", random_token())
 
-        # Password for authentication to redis.
+        # Password for authentication to Redis.
         if need_secret("redis_password"):
             # We defer importing settings unless we need it, because
             # importing settings is expensive (mostly because of

scripts/setup/postgres-init-db

@@ -10,7 +10,7 @@ set -x
 # What user should we use for connecting to the database
 POSTGRES_USER="${POSTGRES_USER:-postgres}"
 
-# This psql command may fail because the zulip database doesn’t exist,
+# This psql command may fail because the Zulip database doesn’t exist,
 # hence the &&.
 if records="$(
     cd / # Make sure the current working directory is readable by postgres

scripts/setup/restore-backup

@@ -115,10 +115,10 @@ def restore_backup(tarball_file: IO[bytes]) -> None:
                 "--production",
             ])
 
-            # If there is a local rabbitmq, we need to reconfigure it
+            # If there is a local RabbitMQ, we need to reconfigure it
-            # to ensure the rabbitmq password matches the value in the
+            # to ensure the RabbitMQ password matches the value in the
             # restored zulip-secrets.conf.  We need to be careful to
-            # only do this if rabbitmq is configured to run locally on
+            # only do this if RabbitMQ is configured to run locally on
             # the system.
             rabbitmq_host = subprocess.check_output(
                 [os.path.join(settings.DEPLOY_ROOT,

scripts/setup/upgrade-postgres

@@ -24,8 +24,8 @@ if pg_lsclusters -h | grep -qE "^$UPGRADE_TO\s+main\b"; then
 fi
 
 (
-    # Two-stage application of puppet; we apply the bare-bones
+    # Two-stage application of Puppet; we apply the bare-bones
-    # postgresql configuration first, so that FTS will be configured
+    # PostgreSQL configuration first, so that FTS will be configured
     # prior to the pg_upgradecluster.
     TEMP_CONF_DIR=$(mktemp -d)
     cp /etc/zulip/zulip.conf "$TEMP_CONF_DIR"

scripts/zulip-puppet-apply

@@ -11,7 +11,7 @@ from lib.zulip_tools import assert_running_as_root, parse_os_release
 assert_running_as_root()
 BASE_DIR = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
 
-parser = argparse.ArgumentParser(description="Run puppet")
+parser = argparse.ArgumentParser(description="Run Puppet")
 parser.add_argument('--force', '-f', action="store_true",
                     help="Do not prompt with proposed changes")
 parser.add_argument('--noop', action="store_true",
@@ -32,7 +32,7 @@ Exec { path => "/usr/sbin:/usr/bin:/sbin:/bin" }
 for pclass in re.split(r'\s*,\s*', config.get('machine', 'puppet_classes')):
     puppet_config += f"include {pclass}\n"
 
-# We use the puppet configuration from the same Zulip checkout as this script
+# We use the Puppet configuration from the same Zulip checkout as this script
 scripts_path = os.path.join(BASE_DIR, "scripts")
 puppet_module_path = os.path.join(BASE_DIR, "puppet")
 puppet_cmd = ["puppet", "apply", f"--modulepath={puppet_module_path}", "-e", puppet_config]
@@ -40,12 +40,12 @@ if args.noop:
     puppet_cmd += ["--noop"]
 puppet_cmd += extra_args
 
-# Set the scripts path to be a factor so it can be used by puppet code
+# Set the scripts path to be a factor so it can be used by Puppet code
 puppet_env = os.environ.copy()
 puppet_env["FACTER_zulip_conf_path"] = args.config
 puppet_env["FACTER_zulip_scripts_path"] = scripts_path
 
-# This is to suppress puppet warnings with ruby 2.7.
+# This is to suppress Puppet warnings with ruby 2.7.
 if (distro_info['ID'], distro_info['VERSION_ID']) in [('ubuntu', '20.04')]:
     puppet_env["RUBYOPT"] = "-W0"
 

static/assets/zulip-emoji/README

@@ -3,7 +3,7 @@ about Noto, please refer to:
 
 https://code.google.com/p/noto/
 
-These images were generated from the git repository at
+These images were generated from the Git repository at
 <https://android.googlesource.com/platform/external/noto-fonts> as of
 90372d894b5d9c9f2a111315d2eb3b8de1979ee4
 

static/js/bundles/app.js

@@ -1,6 +1,6 @@
 import "./common";
 
-// Import Third party libraries
+// Import third party libraries
 import "../../third/bootstrap-notify/js/bootstrap-notify";
 import "../../third/bootstrap-typeahead/typeahead";
 import "../../third/bootstrap-tooltip/tooltip";
@@ -12,7 +12,7 @@ import "jquery-validation";
 import "flatpickr";
 import "flatpickr/dist/plugins/confirmDate/confirmDate";
 
-// Import App JS
+// Import app JS
 import "../i18n";
 import "../feature_flags";
 import "../loading";
@@ -195,7 +195,7 @@ import "../search_pill_widget";
 import "../stream_ui_updates";
 import "../spoilers";
 
-// Import Styles
+// Import styles
 
 import "../../third/bootstrap-notify/css/bootstrap-notify.css";
 import "spectrum-colorpicker/spectrum.css";

static/js/compose_ui.js

@@ -104,7 +104,7 @@ exports.compute_placeholder_text = function (opts) {
         }
     }
 
-    // For Private Messages
+    // For private messages
     if (opts.private_message_recipient) {
         const recipient_list = opts.private_message_recipient.split(",");
         const recipient_names = recipient_list

static/js/hash_util.js

@@ -59,12 +59,12 @@ exports.encode_stream_name = function (operand) {
 
 exports.decodeHashComponent = function (str) {
     try {
-        // This fails for URLS containing
+        // This fails for URLs containing
         // foo.foo or foo%foo due to our fault in special handling
         // of such characters when encoding. This can also,
         // fail independent of our fault, so just tell the user
-        // that the url is invalid.
+        // that the URL is invalid.
-        // TODO: Show possible valid urls to the user.
+        // TODO: Show possible valid URLs to the user.
         return decodeURIComponent(str.replace(/\./g, "%"));
     } catch {
         ui_report.error(i18n.t("Invalid URL"), undefined, $("#home-error"), 2000);

static/js/markdown.js

@@ -231,7 +231,7 @@ exports.add_topic_links = function (message) {
         }
     }
 
-    // Also make raw urls navigable
+    // Also make raw URLs navigable
     const url_re = /\b(https?:\/\/[^\s<]+[^\s"'),.:;<\]])/g; // Slightly modified from third/marked.js
     const match = topic.match(url_re);
     if (match) {
@@ -268,11 +268,11 @@ function handleEmoji(emoji_name) {
     const alt_text = ":" + emoji_name + ":";
     const title = emoji_name.split("_").join(" ");
 
-    // Zulip supports both standard/unicode emoji, served by a
+    // Zulip supports both standard/Unicode emoji, served by a
     // spritesheet and custom realm-specific emoji (served by URL).
     // We first check if this is a realm emoji, and if so, render it.
     //
-    // Otherwise we'll look at unicode emoji to render with an emoji
+    // Otherwise we'll look at Unicode emoji to render with an emoji
     // span using the spritesheet; and if it isn't one of those
     // either, we pass through the plain text syntax unmodified.
     const emoji_url = emoji.get_realm_emoji_url(emoji_name);
@@ -381,7 +381,7 @@ function python_to_js_filter(pattern, url) {
         const name = match[1];
         // Replace named group with regular matching group
         pattern = pattern.replace("(?P<" + name + ">", "(");
-        // Replace named reference in url to numbered reference
+        // Replace named reference in URL to numbered reference
         url = url.replace("%(" + name + ")s", "\\" + current_group);
 
         // Reset the RegExp state