📝 Document onboarding member to the team

[jefftriplett]

• Request they be added to the https://github.com/django org if they aren't already (email ops@djangoproject.com to get added)
• Add member to https://github.com/orgs/django/teams/coc-committee/members
• Add email account to: https://groups.google.com/g/django-coc-committee
• Add email account to Google Docs (TODO)