Update neutron policy management

Related: PROD-34318

Change-Id: Ic2ee62da1a52076a635b79e8131803723412db4c
diff --git a/README.rst b/README.rst
index aeb895e..6b71fc8 100644
--- a/README.rst
+++ b/README.rst
@@ -1708,6 +1708,26 @@
             agent:
               report_interval: 60
 
+
+Change default service policy configuration:
+--------------------------------------------
+
+.. code-block:: yaml
+
+    neutron:
+      server:
+        policy:
+          create_subnet: 'rule:admin_or_network_owner'
+          create_subnet:segment_id: 'rule:admin_only'
+          # Add key without value to remove line from policy.json
+          get_subnet:
+        bgpvpn_policy:
+          create_bgpvpn: 'rule:admin_only'
+          get_bgpvpn: 'rule:admin_or_owner'
+          # Add key without value to remove line from policy.json
+          get_bgpvpn:tenant_id:
+
+
 Upgrades
 ========