Update 7.heapSort.md

JerryChii · web-flow · commit d931f55a57af · 2017-12-31T13:15:30.000+08:00
diff --git a/7.heapSort.md b/7.heapSort.md
@@ -18,6 +18,7 @@
 
 4. 重复步骤 2，直到堆的尺寸为 1。
 
+过程示例可参考：[图解排序算法(三)之堆排序](https://www.cnblogs.com/chengxiao/p/6129630.html)
 
 ## 2. 动图演示
 

Original file line number	Diff line number	Diff line change
`@@ -18,6 +18,7 @@`
`18`	`18`
`19`	`19`	`4. 重复步骤 2，直到堆的尺寸为 1。`
`20`	`20`
	`21`	`+过程示例可参考：[图解排序算法(三)之堆排序](https://www.cnblogs.com/chengxiao/p/6129630.html)`
`21`	`22`
`22`	`23`	`## 2. 动图演示`
`23`	`24`