diff --git a/README.md b/README.md
index 391768c..0ceb403 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,10 @@
 
 The module was implement based on [RFC4226](https://tools.ietf.org/html/rfc4226) (HOTP: An HMAC-Based One-Time Password Algorithm) and [RFC6238](https://tools.ietf.org/html/rfc6238) (TOTP: Time-Based One-Time Password Algorithm)
 
+### Example
+
+![](http://wx4.sinaimg.cn/large/89243dfbgy1fh3bz5e8bkj20rs0go460.jpg)
+
 ### Feature
 
 * Generate random base32 encoded string
diff --git a/docs/README_zh.md b/docs/README_zh.md
index 6bcdc82..a3f0d7e 100644
--- a/docs/README_zh.md
+++ b/docs/README_zh.md
@@ -4,6 +4,10 @@
 
 该模块基于 [RFC4226](https://tools.ietf.org/html/rfc4226) （HOTP：基于计数器的一次性密码算法）和 [RFC6238](https://tools.ietf.org/html/rfc6238)（TOTP：基于时间的一次性密码算法）实现
 
+### 示例
+
+![](http://wx4.sinaimg.cn/large/89243dfbgy1fh3bz5e8bkj20rs0go460.jpg)
+
 ### 功能
 
 * 随机生成base32加密的字符串