diff --git a/README.md b/README.md
index 55dd88cc..0eb2075e 100644
--- a/README.md
+++ b/README.md
@@ -84,6 +84,8 @@ NSObject+MJKeyValue.h   NSObject+MJKeyValue.m
 
 # <a id="Examples"></a> Examples【示例】
 
+## Add `MJKeyValue` protocol to your model if needed【如果有需要, 请在模型中加入 `MJKeyValue` 协议】
+
 ### <a id="JSON_Model"></a> The most simple JSON -> Model【最简单的字典转模型】
 
 ```objc