Update README.md

README.md

@@ -24,7 +24,7 @@ Then choose to load the appropriate submodule depending on the deployment node
 
 For the FlexRAN controller simply run:
 ```
-git submodule update controller
+git submodule update --remote controller
 ```
 The source code of the controller will be cloned from the appropriate repository
 and can be found in the **controller** directory.
@@ -32,7 +32,7 @@ and can be found in the **controller** directory.
 ## FlexRAN agent
 For the FlexRAN agent simply run:
 ```
-git submodule update agent
+git submodule update --remote agent
 ```
 The source code of the agent will be cloned and can be found in the 
 **agent** directory.