Fix changelog rst bullet point nesting

[derek-globus]

Fixed the bullet point nesting for select malformed locations in existing changelog.

tox -e docs was outputting the following warning (interpretted by sphinx as an error) for me locally:

Warning, treated as error:
<truncated>/changelog.rst:22:Bullet list ends without a blank line; unexpected unindent.

The current public changelog doesn't render these locations as intended.

Snapshot of Readthedocs changelog

Snapshot of tox-locally built changelog after this change