Add sections to team tags

Cynthia "Arty" Ngrequested to merge
team-tags-sections into master

Adds the list of *_team_tag from the sections.yml to the list of valid team_tags for team member files.

Follow up to !138203 (merged)

Also a minor change to the CI file, so changes to the readme, don't trigger downstream jobs.

Edited by Cynthia "Arty" Ng

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