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/ecbf3484faca199456dcd0269cda0b2b

Change-Id: I74de890e0aad06496fcea7b2d28f4a3b604632f4

os-cloud/openstack-ansible-galera_server,openstack/openstack-ansible-galera_server,openstack/openstack-ansible-galera_server,os-cloud/openstack-ansible-galera_server