docs: update README_CN.md.

Author: liqiang-fit2cloud

README_CN.md

@@ -27,10 +27,10 @@ MaxKB 三分钟视频介绍：https://www.bilibili.com/video/BV18JypYeEkj/
 
 ```
 # Linux 机器
-docker run -d --name=maxkb --restart=always -p 8080:8080 -v ~/.maxkb:/var/lib/postgresql/data -v ~/.python-packages:/opt/maxkb/app/sandbox/python-packages cr2.fit2cloud.com/1panel/maxkb
+docker run -d --name=maxkb --restart=always -p 8080:8080 -v ~/.maxkb:/var/lib/postgresql/data -v ~/.python-packages:/opt/maxkb/app/sandbox/python-packages registry.fit2cloud.com/maxkb/maxkb
 
 # Windows 机器
-docker run -d --name=maxkb --restart=always -p 8080:8080 -v C:/maxkb:/var/lib/postgresql/data -v C:/python-packages:/opt/maxkb/app/sandbox/python-packages cr2.fit2cloud.com/1panel/maxkb
+docker run -d --name=maxkb --restart=always -p 8080:8080 -v C:/maxkb:/var/lib/postgresql/data -v C:/python-packages:/opt/maxkb/app/sandbox/python-packages registry.fit2cloud.com/maxkb/maxkb
 
 # 用户名: admin
 # 密码: MaxKB@123..