iterate and enforce multiple git repos

Change-Id: Idee3a226b08c118905db0b0790b4a647ab60ef2d
diff --git a/README.rst b/README.rst
index c94acb1..d5bfc0c 100644
--- a/README.rst
+++ b/README.rst
@@ -69,10 +69,20 @@
     heat:
       client:
         enabled: true
-        source:
-          engine: git
-          address: git@repo.domain.com/heat-templates.git
-          revision: master
+        template:
+          admin:
+            domain: default
+            source:
+              engine: git
+              address: git@repo.domain.com/admin-templates.git
+              revision: master
+          default:
+            domain: default
+            source:
+              engine: git
+              address: git@repo.domain.com/default-templates.git
+              revision: master
+
 
 Heat system definition of several stacks/systems