D544: releasenotes: update docstrings with information on additional flags

[rishabhmadan96 (Rishabh Madan)]

rishabhmadan96 added inline comments.

INLINE COMMENTS

> durin42 wrote in releasenotes.py:555
> I'm not sure what the difference is between incorrect and invalid?

It's just the same thing. I'll replace incorrect with invalid.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D544

To: rishabhmadan96, #hg-reviewers
Cc: durin42, mercurial-devel