diff --git a/README.md b/README.md
index c3cd1fc..b5c8172 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,7 @@ install or update to python 3
 ```
 pip install rasa_core  (版本0.9.0+)
 ```
+this commend will install rasa nlu too.
 
 #### install sklearn and MITIE