Add Kilo release note reference
Add Kilo release note reference

The Kilo release note reference is missing in doc.

Change-Id: Ia47f160220135b19f277592218835a5ea8808325

isyippee/ceilometer,openstack/ceilometer,redhat-openstack/ceilometer,idegtiarov/ceilometer,fabian4/ceilometer,openstack/ceilometer,isyippee/ceilometer,maestro-hybrid-cloud/ceilometer,fabian4/ceilometer,ityaptin/ceilometer,cernops/ceilometer,eayunstack/ceilometer,eayunstack/ceilometer,maestro-hybrid-cloud/ceilometer,redhat-openstack/ceilometer,ityaptin/ceilometer,mathslinux/ceilometer,cernops/ceilometer,mathslinux/ceilometer,idegtiarov/ceilometer