DOC: Move pandas_development_faq from wiki to doc #30232
- [ ] closes #xxxx
- [ ] tests added / passed
- [ ] passes `black pandas`
- [ ] passes `git diff upstream/master -u -- "*.py" | flake8 --diff`
- [ ] whatsnew entry

cc @pandas-dev/pandas-core  @datapythonista thanks for your feedback. Meanwhile we wait for other contributors to decide whether keep this doc or remove it, I fixed the errors you pointed out. Thanks @AdrianMastronardi.

If nobody objects I'll be removing the wiki page and closing this PR soon. If anyone wants to keep anything of that wiki page, please let me know. I think fine to get rid of the wiki page Deleted the wiki page, closing this. Thanks @AdrianMastronardi, and sorry for the late decision (after you did all the work). Please feel free to ping me if you want to move any other page, and you're unsure if the content is still relevant.