am 300caefb: Merge "docs: Removing note for app-indexing developer early adopters from training class, since this feature is going to be publically accessible starting in GMS Longhorn." into klp-modular-dev

* commit '300caefb0ca877f45f48d4e76bc086672a6f59b6':
  docs: Removing note for app-indexing developer early adopters from training class, since this feature is going to be publically accessible starting in GMS Longhorn.