heat : Update repositiory in getting started guide
heat : Update repositiory in getting started guide

Getting started still points to the old github location

Change-Id: I6437285b0a095e4e0ef25ca065c396a5517192b6
Signed-off-by: Steven Hardy <4d1810d1ff6d7f22d774341c4549c02173d2f2ab@redhat.com>

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