Those are fields used by the language switcher to correlate pages across
different languages, even if they have different names/paths/titles.
They are generated with the prepare_for_translation.py script.
- mark all code blocks with ```
- unify empty lines between sections
- adjust list syntax (no space before dash)
- adjust headers to use Atx-style syntax
- remove trailing spaces
- Add new "Organizationl guidelines" section
- Add some relevant links in other sections
- Update heading syntax to account for new h3s
- Normalize heading case
Having the headings on both the left and right sides is more difficult
to edit and maintain, and not much is gained from having them on both
sides. It's still fine to have them on both sides, but this is a
stylistic choice left to the author.