Reminder for Github public team visibility

Author: bhack

governance/api-reviews.md

@@ -5,10 +5,15 @@
 This is an attempt to gather commonly discussed topics when doing API
 reviews. It’ll hopefully be a useful resource to both API owners and people
 proposing API changes.  TF API Owners team (@tensorflow/api-owners) 
-meet twice weekly to discuss changes. We try to get to PRs on the next meeting, 
+meet twice weekly to discuss changes. 
+We try to get to PRs on the next meeting, 
 but we don’t always make it all the way through. If your change is particularly 
 urgent, please ping the PR to notify us of any urgency.
 
+Please note that also if the TF API team is public Github public teams are 
+[only visible](https://docs.github.com/en/github/setting-up-and-managing-organizations-and-teams/about-teams#team-visibility) 
+and mentionable by other teams members.
+
 ## Process
 
 We only look at changes which have already been approved by other reviewers. If