added extra message for node option

Author: jbhatab

lib/generators/USAGE

@@ -9,6 +9,10 @@ can pass the redux option if you'd like to have redux setup for you automaticall
     to integrate the Redux state container framework. The necessary node modules
     will be automatically included for you.
 
+* Node
+
+    Passing the --node generator option sets up the necessary files for node to render the react_components. 
+
 *******************************************************************************
 
 After running the generator, you will want to: