DOC: FutureWarning in Sphinx build when calling read_parquet
- [x] closes #32832
- [ ] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry
@datapythonista Is there a reason to limit the line characters length to 80, in ```rst``` files?

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I don't mean disable the check, but 88 characters seems to me more reasonable rather than 80. Even if ```auto_mkdir=True``` is passed, it still produces the warning on the CI, but on my local machine passing ```auto_mkdir=True``` does solve this issue. @MomIsBestFriend can you just merge master? I just merged another PR that fixes the theme name error you now get CI is green :) Thanks for fixing this @MomIsBestFriend 