DOC: Fix some RT02 issues in docstrings
- [ ] closes #49968 (Replace xxxx with the GitHub issue number)
- [ ] [Tests added and passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#writing-tests) if fixing a bug or adding a new feature
- [ ] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).
- [ ] Added [type annotations](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#type-hints) to new arguments/methods/functions.
- [ ] Added an entry in the latest `doc/source/whatsnew/vX.X.X.rst` file if fixing a bug or adding a new feature.

Towards #49968
Awesome good to see this fully enforced @DeaMariaLeon!

If interested in continuing with these validation there are other codes that we don't enforce https://numpydoc.readthedocs.io/en/latest/validation.html#built-in-validation-checks

( I would personally love to see EX01 enforced ) Thanks @mroeschke. 

> If interested in continuing with these validation there are other codes that we don't enforce https://numpydoc.readthedocs.io/en/latest/validation.html#built-in-validation-checks
> 
> ( I would personally love to see EX01 enforced )

Yes, I'm interested. Would it be this issue? #37875

 Correct. Yeah, exactly - even a PR to add something like
```
    MSG='Partially validate docstrings (EX01)' ; echo $MSG
    $BASE_DIR/scripts/validate_docstrings.py --format=actions --errors=EX01 --ignore_functions \
	    <list of functions goes here>
```
(just like there was for RT02, until you fixed them all 🙌 ) would be really welcome Sure @MarcoGorelli I would be happy to help. Thanks for letting me know. 