We're running into issues with md handlers that expect this kind of 4-space indent. It should be cross-compatible with GH, so switch, even though it feels a little churny.
Manual edits are to:
- .prettierrc.yaml:
- rename from .prettierrc
- add tabWidth (primary change)
- add trailingComma (fix vimPrettier skew)
- contribution_tools.md: Fix remarks about .prettierrc.yaml
- pre-commit-toc.js: indent, bullets
- pre-commit-proposal-list.py: indent of output
The rest is the result of `pre-commit run --all-files`
Unfortunately this'll probably depend on the change being propagated into PR branches, so I wouldn't be surprised if we see regressions for a bit. We'll also need to nudge people to update .vimrc's. Hopefully the pre-commit GH action helps catch issues.
The original header was exactly 80-columns which made every file format
with a line-start comment syntax reflow the text. Instead, pick
a canonical re-flowing that keeps it to just three lines. This also lets
the text refer to the project which seems more clear.
No practical or semantic change here, just getting consistent wording
and line breaks for regularity.