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/0eee6257db043589f8b5d89417dbcd4c

Change-Id: I3767458acbd6806d9667c4de8a3b644ca2bbd522

openstack/designate-dashboard,openstack/designate-dashboard,openstack/designate-dashboard