Fix setup.py for Pypi
Fix setup.py for Pypi

PYPI now requires that markdown files are flagged, fix this.

See failure here:
https://zuul.opendev.org/t/openstack/build/efe723049d554688a1c50f43425f63e6

Change-Id: I4b34395767750449bede8845ddb54eb224a3bd06

stackforge/packstack,openstack/packstack,mahak/packstack,openstack/packstack,fr34k8/packstack,stackforge/packstack,fr34k8/packstack,stackforge/packstack,mahak/packstack,fr34k8/packstack,mahak/packstack,openstack/packstack