add link

README.md

@@ -56,6 +56,8 @@ pip install paddle-serving-server-gpu # GPU
 
 You may need to use a domestic mirror source (in China, you can use the Tsinghua mirror source, add `-i https://pypi.tuna.tsinghua.edu.cn/simple` to pip command) to speed up the download.
 
+If you need install modules compiled with develop branch, please download packages from [latest packages list](./doc/LATEST_PACKAGES.md) and install with `pip install` command.
+
 Client package support Centos 7 and Ubuntu 18, or you can use HTTP service without install client.
 
 <h2 align="center">Quick Start Example</h2>

README_CN.md

@@ -57,6 +57,8 @@ pip install paddle-serving-server-gpu # GPU
 
 您可能需要使用国内镜像源（例如清华源, 在pip命令中添加`-i https://pypi.tuna.tsinghua.edu.cn/simple`）来加速下载。
 
+如果需要使用develop分支编译的安装包，请从[最新安装包列表](./doc/LATEST_PACKAGES.md)中获取下载地址进行下载，使用`pip install`命令进行安装。
+
 客户端安装包支持Centos 7和Ubuntu 18，或者您可以使用HTTP服务，这种情况下不需要安装客户端。
 
 <h2 align="center">快速启动示例</h2>