URL mapping in new docs

[jpivarski]

Which documentation?

Tutorials site

What needs to be documented?

https://github.com/scikit-hep/uproot5/issues/760 points out a dead link in the Uproot docs:

https://awkward-array.readthedocs.io/en/latest/ak.types.Type.html

That's an indication that this link used to work and it has probably been shared beyond just the Uproot docs. It doesn't have the _auto in the URL because it was one of the hand-written reST files, not one made by prepare_docstrings.py.

Looking in the docs branch by swapping latest with docs, it still doesn't exist, but

https://awkward-array.readthedocs.io/en/docs/reference/generated/ak.types.Type.html

does exist, and it's where this URL is supposed to go. So we'll need a redirect.

Also, the layout URLs that are now

https://awkward-array.readthedocs.io/en/docs/reference/generated/ak.contents.Content.html

(unfortunately!) need a redirect from "ak.layout." to "ak.contents." (all the Content classes). Similarly for "ak.layout.Record" (only one Record) → "ak.record.Record" and "ak.layout.Index" → "ak.index.Index" (all the Index classes). Unless we want those links to fail as an indicator to users that the name no longer exists? Maybe better, a page briefly describing the name change (rather than an automated redirect)?

[agoose77]

Ah, we do have redirects, but it seems like we lost a directory component somehow. Should be a quick fix!