Hotfix references in docs

[l1storez]

What do these changes do?

This change corrects multiple unrendered intersphinx class reference in the document.

Are there changes in behavior for the user?

No

Related issue number

#5518

Checklist

• I think the code is well written
• Unit tests for the changes exist
• Documentation reflects the changes
• If you provide code modification, please add yourself to CONTRIBUTORS.txt
  • The format is <Name> <Surname>.
  • Please keep alphabetical order, the file is sorted by names.
• Add a new news fragment into the CHANGES folder
  • name it <issue_id>.<type> for example (588.bugfix)
  • if you don't have an issue_id change it to the pr id after creating the pr
  • ensure type is one of the following:
    • .feature: Signifying a new feature.
    • .bugfix: Signifying a bug fix.
    • .doc: Signifying a documentation improvement.
    • .removal: Signifying a deprecation or removal of public API.
    • .misc: A ticket has been closed, but it is not of interest to users.
  • Make sure to use full sentences with correct case and punctuation, for example: "Fix issue with non-ascii contents in doctest text files."

[l1storez]

Open to name change. PR fixes some losing warnings in docs

[codecov]

Codecov Report

Merging #5721 (ceea612) into master (7a4cebb) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #5721   +/-   ##
=======================================
  Coverage   97.17%   97.17%           
=======================================
  Files          41       41           
  Lines        8865     8865           
  Branches     1425     1425           
=======================================
  Hits         8615     8615           
  Misses        133      133           
  Partials      117      117           

Flag	Coverage Δ
unit	97.06% <ø> (ø)

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[webknjaz]

It's best to actually fill out the PR template but I don't have energy to go through that now. Merging as is.

[patchback]

Backport to 3.8: 💚 backport PR created

✅ Backport PR branch: patchback/backports/3.8/63eb6ff550b2ba9f13cf5248980a4958e14a1af7/pr-5721

Backported as #5724

🤖 @patchback
I'm built with octomachinery and
my source is open — https://github.com/sanitizers/patchback-github-app.

[l1storez]

Update PR template