修改 README.md

onanying · onanying · commit 32c5fa83f3a7 · 2018-10-26T14:38:49.000+08:00
diff --git a/README.md b/README.md
@@ -10,7 +10,7 @@
 composer require mixstart/delayer-client-php:1.*
 ```
 
-## DEMO
+## Example
 
 ### `push` 方法
 
