help: Update Organization basics section to conform to style guide.

templates/zerver/help/change-the-default-language-for-your-organization.md

@@ -1,4 +1,4 @@
-# Change the default language
+# Set the default language for new users
 
 {!admin-only.md!}
 
@@ -11,11 +11,17 @@ a default language for new users. This setting will not affect existing
 users, and new users can still
 [manage their individual language setting](change-your-language).
 
+### Set the default language for new users
+
+{start_tabs}
+
 {settings_tab|organization-settings}
 
 2. Under **Default user settings**, change the **Default language**.
 
 {!save-changes.md!}
 
-!!! tip ""
-    You can always send and read messages in any language.
+{end_tabs}
+
+Note that users can always send and read messages in any language, regardless
+of their language setting.

templates/zerver/help/deactivate-your-organization.md

@@ -2,14 +2,18 @@
 
 {!admin-only.md!}
 
+{start_tabs}
+
 {settings_tab|organization-profile}
 
 1. Under **Deactivate organization**, click **Deactivate organization**.
 
 1. Confirm by clicking **Deactivate organization**.
 
-!!! tip ""
-    This action cannot be undone by anyone in the organization. If you
+{end_tabs}
+
+!!! warn ""
+    **Note**: This action cannot be undone by anyone in the organization. If you
     deactivated your organization by accident, please contact your server
     administrator ({{ support_email }}) as soon as possible, before the
     deactivated organization is permanently deleted.

templates/zerver/help/import-from-gitter.md

@@ -11,6 +11,10 @@ existing Zulip organization.
 
 First, export your data from Gitter.
 
+### Export your Gitter data
+
+{start_tabs}
+
 1. [Export your Gitter data](https://github.com/minrk/archive-gitter). You will
    receive json files of the public rooms that you are a part of.
    Select the `gitter_data.json` file of the room which you want to import into
@@ -21,6 +25,8 @@ First, export your data from Gitter.
         token by following the instructions in the "**Getting Started**" section of the
         [gitter documentation](https://developer.gitter.im/docs/).
 
+{end_tabs}
+
 ### Import into zulipchat.com
 
 Email support@zulipchat.com with `gitter_data.zip` and your desired

templates/zerver/help/import-from-slack.md

@@ -17,6 +17,10 @@ into an existing Zulip organization.
 
 First, export your data from Slack.
 
+### Export your Slack data
+
+{start_tabs}
+
 1. [Export your Slack data](https://my.slack.com/services/export). You will
    receive a zip file `slack_data.zip`.
 
@@ -28,6 +32,8 @@ First, export your data from Slack.
 
 2. [Generate a Slack API token](https://api.slack.com/custom-integrations/legacy-tokens).
 
+{end_tabs}
+
 ### Import into zulipchat.com
 
 Email support@zulipchat.com with `slack_data.zip`, the Slack API token

templates/zerver/help/join-zulip-chat-badge.md

@@ -1,4 +1,4 @@
-# "Join Zulip" chat badge
+# Link to Zulip from the web
 
 You can link to your Zulip from the web with a Zulip
 [shields.io](https://github.com/badges/shields) badge:

templates/zerver/help/review-your-organization-settings.md

@@ -8,6 +8,12 @@ scale may be applicable now.
 Note that most organization settings are visible to all users, though
 generally only organization administrators can interact with them.
 
+### Review your organization settings
+
+{start_tabs}
+
 {relative|gear|manage-organization}
 
 1. Click on each tab on the left.
+
+{end_tabs}