Update policy configuration document
Update policy configuration document

Change-Id: I94164f43c20eb2d3ee66be4aab8419eff3f46333
Story: 2001233
Task: 23333

openstack/monasca-log-api,stackforge/monasca-log-api,stackforge/monasca-log-api,openstack/monasca-log-api,openstack/monasca-log-api,stackforge/monasca-log-api