Update the README with more current links
Update the README with more current links

Change-Id: I14cb327b75053f478b1a0bf1d463488601420390

gonzolino/heat,cryptickp/heat,pshchelo/heat,maestro-hybrid-cloud/heat,noironetworks/heat,cryptickp/heat,rh-s/heat,steveb/heat,ntt-sic/heat,rickerc/heat_audit,Triv90/Heat,dragorosson/heat,dragorosson/heat,dims/heat,gonzolino/heat,citrix-openstack-build/heat,cwolferh/heat-scratch,srznew/heat,pratikmallya/heat,redhat-openstack/heat,Triv90/Heat,jasondunsmore/heat,NeCTAR-RC/heat,dims/heat,jasondunsmore/heat,pratikmallya/heat,openstack/heat,steveb/heat,takeshineshiro/heat,NeCTAR-RC/heat,varunarya10/heat,miguelgrinberg/heat,redhat-openstack/heat,takeshineshiro/heat,noironetworks/heat,rickerc/heat_audit,miguelgrinberg/heat,srznew/heat,pshchelo/heat,citrix-openstack-build/heat,JioCloud/heat,JioCloud/heat,maestro-hybrid-cloud/heat,rdo-management/heat,rdo-management/heat,Triv90/Heat,rh-s/heat,ntt-sic/heat,cwolferh/heat-scratch,openstack/heat,varunarya10/heat