Update grammar in changelog as requested

Preparing release version 3.1.3

Preparing release version 3.1.2

Preparing release version 3.1.1

Preparing release version 3.1.0

Include release 3.0.7 announce in index.rst

take off author_email after pypi rejects

Regendocs for 3.0.5

Regen doc for 3.0.4

Include release-3.0.3 into the announce toctree