Use redirects for Page not Found

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See what pages are getting 404

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This may help
https://sphinx-version-warning.readthedocs.io/en/latest/

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https://github.com/humitos/sphinx-version-warning

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https://github.com/coding-to-music/sphinxext-rediraffe

https://pypi.org/project/sphinxext-rediraffe/

This sphinx extension redirects non-existent pages to working pages. Rediraffe can also check that deleted/renamed files in your git repo are redirected.

Rediraffe creates a graph of all specified redirects and traverses it to point all internal urls to leaf urls. This means that chained redirects will be resolved. For example, if a config has 6 chained redirects, all 6 links will redirect directly to the final link. The end user will never experience more than 1 redirection.

Diff Checker
The diff checker ensures that deleted/renamed files in your git repo are in your redirects.

To run the diff checker,

Set rediraffe_branch and rediraffe_redirects in conf.py.
Run the rediraffecheckdiff builder.
Auto Redirect builder
The auto redirect builder can be used to automatically add renamed files to your redirects file. Simply run the rediraffewritediff builder.

To run the auto redirecter:

Set rediraffe_branch and rediraffe_redirects in conf.py.
Run the rediraffewritediff builder.
Note: The auto redirect builder only works with a configuration file. Note: Deleted files cannot be added to your redirects file automatically.