Extension naming convention info is out of date

Created by: artfulrobot

Apparently we no longer use com.backwards.name for extensions, preferring simpler names.

So the documentation should be updated.

I agree :-)

Created by: github-actions[bot]

This issue has had no activity in 60 days and has been marked as stale, it will be closed in 10 days.

Created by: mlutfy

This was fixed in #649 by @artfulrobot, closing