diff --git a/README.md b/README.md
index f7a661b..c28a6cc 100644
--- a/README.md
+++ b/README.md
@@ -65,6 +65,13 @@ Not required , the object name will be used if not specified
 
 ## example
 
+
+### Extra manifest
+
+You can add some extra manifest using this command
+```
+    extra_manifest = ["/opt/kubernetes/Bookstack_kube/Bookstack.configmap.yaml","/opt/kubernetes/Bookstack_kube/Bookstack.secret.yaml"]
+```
 ### Volumes
 #### Volume as PVC