DOC: Remove `# doctest: +SKIP`
- [x] closes #32528
- [ ] tests added / passed
- [x] passes `black pandas`
- [x] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

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I want to be sure that the output of describe is deterministic, I will rebase regularly and if it passes all the times, I will mark it as ready for review. 