modify word bug

Author: lidianhao123

README-cn.md

@@ -12,7 +12,7 @@
 
 [demo3](https://react-ld.github.io/react-pullLoad/index3.html) document.body 作为容器 且自定义刷新和加载更多 UI 组件
 
-[demo3](https://react-ld.github.io/react-pullLoad/index4.html) 禁用下拉刷新功能
+[demo4](https://react-ld.github.io/react-pullLoad/index4.html) 禁用下拉刷新功能
 
 # 当前版本 1.0.4
 

README.md

@@ -11,6 +11,7 @@
 [demo2](https://react-ld.github.io/react-pullLoad/index2.html) use ReactPullLoad root DOM as container
 
 [demo3](https://react-ld.github.io/react-pullLoad/index3.html) use document.body as container, and config UI component (HeadNode and FooterNode).
+
 [demo4](https://react-ld.github.io/react-pullLoad/index4.html) forbidden pull refresh
 
 # version 1.0.4