Update README.md

README.md

@@ -90,7 +90,8 @@ Java客户端不依赖任何框架，能够运行于所有Java运行时环境，
   * [部署&开发遇到的常见问题](https://github.com/ctripcorp/apollo/wiki/%E9%83%A8%E7%BD%B2&%E5%BC%80%E5%8F%91%E9%81%87%E5%88%B0%E7%9A%84%E5%B8%B8%E8%A7%81%E9%97%AE%E9%A2%98)
 
 # Presentation
-  * [基于Spring Cloud的Apollo配置中心介绍](http://www.itdks.com/dakashuo/detail/929)
+  * [携程开源配置中心Apollo的设计与实现](http://www.itdks.com/dakashuo/new/dakalive/detail/3420)
+  * [Slides](http://techshow.ctrip.com/wp-content/uploads/2017/08/%E5%BC%80%E6%BA%90%E9%85%8D%E7%BD%AE%E4%B8%AD%E5%BF%83Apollo%E7%9A%84%E8%AE%BE%E8%AE%A1%E4%B8%8E%E5%AE%9E%E7%8E%B0-%E6%90%BA%E7%A8%8B%E5%AE%8B%E9%A1%BA.pdf)
 
 # Support
 ![tech-support-qq](https://raw.githubusercontent.com/ctripcorp/apollo/master/doc/images/tech-support-qq.png)