update readme

README.md

@@ -72,6 +72,7 @@ Java客户端不依赖任何框架，能够运行于所有Java运行时环境，
 
 # Design
   * [Apollo配置中心设计](https://github.com/ctripcorp/apollo/wiki/Apollo%E9%85%8D%E7%BD%AE%E4%B8%AD%E5%BF%83%E8%AE%BE%E8%AE%A1)
+  * [Apollo核心概念之“Namespace”](https://github.com/ctripcorp/apollo/wiki/Apollo%E6%A0%B8%E5%BF%83%E6%A6%82%E5%BF%B5%E4%B9%8B-%E2%80%9CNamespace%E2%80%9D)
 
 # Development
   * [Apollo开发指南](https://github.com/ctripcorp/apollo/wiki/Apollo%E5%BC%80%E5%8F%91%E6%8C%87%E5%8D%97)
@@ -85,6 +86,7 @@ Java客户端不依赖任何框架，能够运行于所有Java运行时环境，
 
 # FAQ
   * [常见问题回答](https://github.com/ctripcorp/apollo/wiki/FAQ)
+  * [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)
 
 # Support
 ![tech-support-qq](https://raw.githubusercontent.com/ctripcorp/apollo/master/doc/images/tech-support-qq.png)