Expand more of the repo verification steps

Provide more details about the repo verification steps to ensure that
patches can be submitted, tested, and reviewed.

Remove the step for verifying that a release can be created, because
this is probably much too early in the process of setting up a
repository to be tagging a release.

Change-Id: I6af7f973669d23e30b6b05a2824bd0f494d5f25c
Merge "Expand more of the repo verification steps"