message: docs(release): Add note about release branch names to CONTRIBUTING
  We have to name release branches to match release_* to get signed builds that can be RCs. Add this
  to the releasing section of CONTRIBUTING.md
diff: @@ -217,17 +217,18 @@ Our release process is still a work-in-progress. All projects are currently vers
  1. `make bump` (see details below)
  2. Inspect version bumps and changelogs
  3. Edit the user-facing changelog at `app-shell/build/release-notes.md` to add the new notes
  -4. `git add --all`
  -5. `git cz`
  +4. `git checkout -b release_${version}` (The branch name _must_ match `release_*` to trigger signed builds that can be used as RCs)
  +5. `git add --all`
  +6. `git cz`
  - Type: `chore`
  - Scope: `release`
  - Message: `${version}`
  -6. Open a PR into `edge`
  -7. Squash merge the PR once approved
  -8. Verify that CI is green on `edge` and test the build artifacts
  -9. Pull latest `edge` to your machine
  -10. `git tag -a v${version} -m 'chore(release): ${version}'`
  -11. `git push --tags`
  +7. Open a PR into `edge`
  +8. Squash merge the PR once approved
  +9. Verify that CI is green on `edge` and test the build artifacts
  +10. Pull latest `edge` to your machine
  +11. `git tag -a v${version} -m 'chore(release): ${version}'`
  +12. `git push --tags`
  #### `make bump` usage
  