Update docker image address

Author: jiangjiajun

README.md

@@ -33,7 +33,7 @@ FastDeploy升级2.0版本支持多种大模型推理（当前仅支持Qwen2，
 
 ### Docker安装(推荐)
 ```
-docker pull iregistry.baidu-int.com/paddlepaddle/fastdeploy:2.0.0-alpha
+docker pull iregistry.baidu-int.com/fastdeploy-public/fastdeploy:2.0.0-alpha 
 ```
 
 ### 源码安装