message: Contrib: Add docs on the rustbot ready command
diff: @@ -122,6 +122,21 @@ typically finish in under 30 minutes.
  The reviewer might point out changes deemed necessary. Large or tricky changes
  may require several passes of review and changes.
  +### Status labeling
  +
  +PRs will get marked with [labels] like [`S-waiting-on-review`] or [`S-waiting-on-author`] to indicate their status.
  +The [`@rustbot`] bot can be used by anyone to adjust the labels.
  +If a PR gets marked as `S-waiting-on-author`, and you have pushed new changes that you would like to be reviewed, you can write a comment on the PR with the text `@rustbot ready`.
  +The bot will switch the labels on the PR.
  +
  +More information about these commands can be found at the [shortcuts documentation].
  +
  +[labels]: https://github.com/rust-lang/cargo/labels
  +[`S-waiting-on-review`]: https://github.com/rust-lang/cargo/labels/S-waiting-on-review
  +[`S-waiting-on-author`]: https://github.com/rust-lang/cargo/labels/S-waiting-on-author
  +[`@rustbot`]: https://github.com/rustbot
  +[shortcuts documentation]: https://github.com/rust-lang/triagebot/wiki/Shortcuts
  +
  ## The merging process
  After a reviewer has approved your PR, they will issue a command to the [bors]
  