cleanup README.rst to upload to pypi (bp #1030)

[mergify]

This is an automated backport of pull request #1030 done by Mergify.io

Cherry-pick of d12a3fb has failed:

On branch mergify/bp/stable/4.2/pr-1030
Your branch is up to date with 'origin/stable/4.2'.

You are currently cherry-picking commit d12a3fb5.
  (fix conflicts and run "git cherry-pick --continue")
  (use "git cherry-pick --abort" to cancel the cherry-pick operation)

Changes to be committed:

	modified:   README.rst

Unmerged paths:
  (use "git add <file>..." to mark resolution)

	both modified:   setup.cfg

To fixup this pull request, you can check out it locally. See documentation: https://help.github.com/articles/checking-out-pull-requests-locally/

[jd]

Seems like we use pbr on this branch, a different patch is needed.

[chungg]

i give up