Update README.md

Author: Snailclimb

README.md

@@ -139,6 +139,7 @@
 ### ZooKeeper
 
 * [可能是把 ZooKeeper 概念讲的最清楚的一篇文章](https://github.com/Snailclimb/Java_Guide/blob/master/主流框架/ZooKeeper.md)
+* [ZooKeeper 数据模型和常见命令了解一下，速度收藏！](https://github.com/Snailclimb/Java_Guide/blob/master/主流框架/ZooKeeper数据模型和常见命令.md)
 
 ## :floppy_disk: 数据存储