parametrize client restrictions

Change-Id: Idfe4036a558204cb839bb3542b7bd9cdb1277a1d
diff --git a/README.rst b/README.rst
index ef4d3de..f8834b6 100644
--- a/README.rst
+++ b/README.rst
@@ -63,7 +63,6 @@
 
   .. note:: full_backups_to_keep param states how many backup will be stored locally on zookeeper client
 
-
 Backup server rsync
 
 .. code-block:: yaml
@@ -79,6 +78,14 @@
               enabled: true
               key: ssh_rsa
 
+Backup server without strict client restriction
+
+.. code-block:: yaml
+
+    zookeeper:
+      backup:
+        restrict_clients: false
+
 Client restore from local backup:
 
 .. code-block:: yaml