Improve 'monkey_patch' conf options documentation
Improve 'monkey_patch' conf options documentation

Change-Id: Ib03fa55dc6937a52ff66b932872ceb07dce2514a
Implements: bp centralize-config-options-newton

zhimin711/nova,Juniper/nova,gooddata/openstack-nova,cernops/nova,sebrandon1/nova,gooddata/openstack-nova,rahulunair/nova,klmitch/nova,hanlind/nova,mahak/nova,mahak/nova,cernops/nova,openstack/nova,jianghuaw/nova,jianghuaw/nova,alaski/nova,cloudbase/nova,sebrandon1/nova,zhimin711/nova,mikalstill/nova,cloudbase/nova,bigswitch/nova,sebrandon1/nova,vmturbo/nova,Juniper/nova,openstack/nova,vmturbo/nova,mikalstill/nova,rajalokan/nova,klmitch/nova,cloudbase/nova,vmturbo/nova,mahak/nova,mikalstill/nova,rahulunair/nova,cernops/nova,alaski/nova,jianghuaw/nova,klmitch/nova,phenoxim/nova,gooddata/openstack-nova,vmturbo/nova,rajalokan/nova,hanlind/nova,rahulunair/nova,openstack/nova,Juniper/nova,rajalokan/nova,bigswitch/nova,Juniper/nova,hanlind/nova,klmitch/nova,jianghuaw/nova,phenoxim/nova,rajalokan/nova,gooddata/openstack-nova