Show team and repo badges on README
Show team and repo badges on README

This patch adds the team's and repository's badges to the README file.
The motivation behind this is to communicate the project status and
features at first glance.

For more information about this effort, please read this email thread:

http://lists.openstack.org/pipermail/openstack-dev/2016-October/105562.html

To see an example of how this would look like check:

https://gist.github.com/929af6053c0a5410c6bb549307be3c66

Change-Id: I5b2dfb99381280de6a16e01e189e27f1e59d492d

openstack/openstack-ansible-openstack_hosts,openstack/openstack-ansible-openstack_hosts