add for example

Stephen.lin · web-flow · commit 2bb10c41d85b · 2017-09-04T10:30:01.000+08:00
add for example
diff --git a/README.md b/README.md
@@ -1,3 +1,10 @@
 #### mybatis 分页插件
 	
 	基于 exectur 拦截 查询请求
+#### For Example
+
+```java
+PageHelper.pageStart(pager);
+List<Object> list =  testerMapper.selectListByPager(post);
+pager = PageHelper.pageEnd();
+```
