docs: Move mypy documentation from contributing to testing.

The testing section is more appropriate, since it's fundamentally part
of our CI system.

While we're at it, fix the fact that we were linking to GitHub, not
ReadTheDocs, in the run-mypy output.

docs/contributing/code-reviewing.md

@@ -166,7 +166,7 @@ Some points specific to the Zulip server codebase:
 
 * *mypy annotations.* New functions should be annotated using [mypy]
   and existing annotations should be updated.  Use of `Any`, `ignore`,
-  and unparameterized containser should be limited to cases where a
+  and unparameterized containers should be limited to cases where a
   more precise type cannot be specified.
 
 ## Tooling
@@ -197,6 +197,6 @@ We also strongly recommend reviewers to go through the following resources.
 [code-style]: ../contributing/code-style.html
 [commit-messages]: ../contributing/version-control.html#commit-messages
 [test-writing]: ../testing/testing.html
-[mypy]: ../contributing/mypy.html
+[mypy]: ../testing/mypy.html
 [git tool]: ../git/zulip-tools.html#fetch-a-pull-request-and-rebase
 [translation]: ../translating/translating.html

docs/contributing/index.rst

@@ -7,7 +7,6 @@ Code Contribution Guide
 
    version-control
    code-style
-   mypy
    code-reviewing
    chat-zulip-org
    zulipbot-usage

docs/git/overview.md

@@ -65,7 +65,7 @@ git workflow, or if you'd like a git refresher.
 [zulip-rtd-commit-messages]: ../contributing/version-control.html#commit-messages
 [zulip-rtd-dev-overview]: ../development/overview.html
 [zulip-rtd-lint-tools]: ../contributing/code-style.html#lint-tools
-[zulip-rtd-mypy]: ../contributing/mypy.html
+[zulip-rtd-mypy]: ../testing/mypy.html
 [zulip-rtd-testing]: ../testing/testing.html
 [zulip-rtd-zulip-tools]: ../git/zulip-tools.html
 [zulip-rtd-zulipbot-usage]: ../contributing/zulipbot-usage.html

docs/overview/gsoc-ideas.md

@@ -448,7 +448,7 @@ Expert: Tommy Ip, Tim Abbott.
   single area).
 
   A possible specific larger project in this space is working on
-  adding [mypy](../contributing/mypy.html) stubs
+  adding [mypy](../testing/mypy.html) 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

docs/subsystems/dependencies.md

@@ -202,7 +202,7 @@ highlighting.  The system is largely managed by the code in
   `ignore_missing_imports` for the new library.  See
   [our mypy docs][mypy-docs] for more details.
 
-[mypy-docs]: ../contributing/mypy.html
+[mypy-docs]: ../testing/mypy.html
 
 ## JavaScript and other frontend packages
 

docs/testing/index.rst

@@ -10,5 +10,6 @@ Code Testing
    testing-with-django
    testing-with-node
    testing-with-casper
+   mypy
    travis
    manual-testing

docs/testing/linters.md

@@ -104,7 +104,7 @@ The remaining lint checks occur in `./tools/run-mypy`.  It is probably somewhat
 of an understatement to call "mypy" a "linter," as it performs static
 code analysis of Python type annotations throughout our Python codebase.
 
-Our [documentation on using mypy](../contributing/mypy.html) covers mypy in more detail.
+Our [documentation on using mypy](../testing/mypy.html) covers mypy in more detail.
 
 The rest of this document pertains to the checks that occur in `./tools/lint`.
 

templates/zerver/api/incoming-webhooks-walkthrough.md

@@ -130,7 +130,7 @@ it must exist before a message can be created in it. (See
 [Step 4: Create tests](#step-4-create-tests) for how to handle this in tests.)
 
 The line that begins `# type` is a mypy type annotation. See [this
-page](https://zulip.readthedocs.io/en/latest/contributing/mypy.html) for details about
+page](https://zulip.readthedocs.io/en/latest/testing/mypy.html) for details about
 how to properly annotate your webhook functions.
 
 In the body of the function we define the body of the message as `Hello! I am

tools/run-mypy

@@ -91,6 +91,6 @@ else:
 
 if rc != 0:
     print("")
-    print("See https://github.com/zulip/zulip/blob/master/docs/contributing/mypy.md for debugging tips.")
+    print("See https://zulip.readthedocs.io/en/latest/testing/mypy.html for debugging tips.")
 
 sys.exit(rc)