Make README less verbose and to the point
Make README less verbose and to the point

Change-Id: I60d2b66257aac885b5b23378ce54b7e57d433208

mahak/neutron,noironetworks/neutron,openstack/neutron,openstack/neutron,cloudbase/neutron,eayunstack/neutron,huntxu/neutron,cloudbase/neutron,huntxu/neutron,mahak/neutron,openstack/neutron,mahak/neutron,noironetworks/neutron,eayunstack/neutron