How to prepare your PR for the release notes author

https://docs.civicrm.org/dev/en/latest/core/contributing/ and https://docs.civicrm.org/dev/en/latest/core/release-process/ don't cover how to prepare your PR for the release notes author

@agh1 gave a fairly good summary of what you need to do here: dev/core#1331 (comment 33813) in the context of that specific issue.

Tangential: are there other things that are necessary or worthwhile doing as part of this process?