Documenting new additions has been an informal requirement for
a few months now. This makes it official.
(cherry picked from commit 6d0e8f9fb70ff00088185f59a627c8f65f5d78ed)
- Improve the bug reporting guidelines for readability.
- Make some guidelines more strictly applied in the interest of
bug report quality.
- Mention that feature proposals should now be opened on the
Godot Proposals repository.
- Update the Git commit message guide to be easier to follow.
- Fix warnings reported by markdownlint.
(cherry picked from commit 7b5c502ba5c69c68003441a425981a69ca4876c2)
CONTRIBUTING.md would use the phrase "those guidelines" to introduce a
list. In general, the word "these" is used to refer to something that is
being introduced or has recently been introduced, and "those" is used to
refer to something that had been previously introduced.
This change also makes CONTRIBUTING.md consistent with the
documentation. The documentation guidelines at
https://docs.godotengine.org/en/latest/community/contributing/documentation_guidelines.html
use "these" to introduce a list and its singular form, "this", to
introduce items.
