fix missyntax in README.rst
fix missyntax in README.rst

Change-Id: Ibdcf60c3b85bf76526bf6566f53eb65a2afabf68

stackforge/kolla,nihilifer/kolla,rahulunair/kolla,openstack/kolla,rahulunair/kolla,openstack/kolla,stackforge/kolla,stackforge/kolla,nihilifer/kolla