完善README.md

README.md

@@ -111,9 +111,16 @@ Into environment gems from Github checkout:
 
 ### Usage in Rails
 
-To annotate all your models, tests, fixtures, and factories:
+Enter your app directory:
 
     cd /path/to/app
+
+(Recommended) To annotate all your models with comments:
+
+    annotate --models --with-comment
+
+To annotate all your models, tests, fixtures, and factories:
+
     annotate
 
 To annotate just your models, tests, and factories: