R-00011 changed from MUST NOT to SHOULD NOT

R-14447: corrected "is is" to "is"

R-20547 changed MUST NOT to SHOULD NOT

R-54171 changed  from "that *MUST* start at zero in a VNF Orchestration Template and increments by one." to " that *MUST* start at zero in a VNF's Heat Orchestration Template and *MUST* increment by one."

R-88863 changed from MUST to MAY

R-22608 changed from MUST NOT to SHOULD NOT