Merge pull request #6421 from scpeters/new_maintainer_monthly_call

New-Maintainer-Checklist: invite to monthly call

docs/New-Maintainer-Checklist.md

@@ -59,6 +59,7 @@ If they accept, follow a few steps to get them set up:
 - Add them to the [Jenkins' GitHub Pull Request Builder admin list](https://jenkins.brew.sh/configure) to enable `@BrewTestBot test this please` for them.
 - Invite them to the [`homebrew-maintainers` private maintainers mailing list](https://lists.sfconservancy.org/mailman/admin/homebrew-maintainers/members/add).
 - Invite them to the [`machomebrew` private maintainers Slack](https://machomebrew.slack.com/admin/invites) (and ensure they've read the [communication guidelines](Maintainer-Guidelines.md#communication)) and ask them to use their real name there (rather than a pseudonym they may use on e.g. GitHub).
+- Invite them to the Homebrew Maintainers Monthly Call on Google calendar.
 - Ask them to disable SMS as a 2FA device or fallback on their GitHub account in favour of using one of the other authentication methods.
 - Ask them to (regularly) review remove any unneeded [GitHub personal access tokens](https://github.com/settings/tokens).
 - Add them to Homebrew/brew's README, run `brew man` and commit the changes.