Update dpg help; dpg create allows orride of $SERVICE_ID/$PLAN_ID [ci skip]
Update dpg help; dpg create allows orride of $SERVICE_ID/$PLAN_ID [ci skip]

cloudfoundry-community/patroni-boshrelease,drnic/patroni-boshrelease,dingotiles/dingo-postgresql-release,dingotiles/patroni-docker-boshrelease,drnic/patroni-boshrelease,dingotiles/patroni-docker-boshrelease,cloudfoundry-community/patroni-boshrelease,cloudfoundry-community/patroni-boshrelease,dingotiles/patroni-docker-boshrelease,drnic/patroni-boshrelease,dingotiles/dingo-postgresql-release,dingotiles/dingo-postgresql-release