Add option to disable DHCP on gateway nodes
Related-Prod: PROD-30105

Change-Id: I0df5de0f7a4a8deed1eccb66e1c43395a23452ea
diff --git a/README.rst b/README.rst
index 8986c63..b48e194 100644
--- a/README.rst
+++ b/README.rst
@@ -945,6 +945,17 @@
         dhcp_agent_enabled: true
       ....
 
+Neutron with DHCP agent disabled on gateway node
+------------------------------------------------
+
+.. code-block:: yaml
+
+    neutron:
+      ....
+      gateway:
+        dhcp_agent_enabled: false
+      ....
+
 Neutron with metadata agent on compute node
 -------------------------------------------