Recent Commits to styleguide:gh-pages

pylintrc: disable score reports

We disable reports in general already, but newer pylint versions include
per-file score reports by default.

PiperOrigin-RevId: 725563567

add commit message guidance #336

Since many Google projects refer to this site for writing git commit
messages already, or have guidance that is well aligned with it, link
to them rather than write our own document.

Fixes: #336