added support for init scripts

Change-Id: I466904341769e7a21f2d5a8501e09250a2bf345d
diff --git a/README.rst b/README.rst
index e56c428..af086fe 100644
--- a/README.rst
+++ b/README.rst
@@ -17,6 +17,7 @@
         image_location: http://...
         disk_format: qcow2
         public_network: INET1
+        saltmaster_ip: 10.0.0.90
 
     avinetworks:
       client: