docs: add missing MinQuorum docs

[schmichael]

Also update Autopilot API examples.

Reviewer Checklist

• [ ] Backport Labels Please add the correct backport labels as described by the internal backporting document.
• [ ] Commit Type Ensure the correct merge method is selected which should be "squash and merge" in the majority of situations. The main exceptions are long-lived feature branches or merges where history should be preserved.