Docs: update

README-CN.md

@@ -83,6 +83,8 @@ synctv server --data-dir ./
 
 每次启动会检测是否有root权限的用户，如果没有则会初始化一个`root`用户，密码为`root`，请及时修改用户名密码。
 
+用户注册功能需要启用任意 `OAuth2` 服务，如 `Google`、`Github` 等等，具体配置请参考[文档](https://synctv.wiki/#/zh-cn/oauth2)。
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 # 文档
 https://synctv.wiki
 

README.md

@@ -85,6 +85,8 @@ synctv server --data-dir ./
 
 Every time it starts, it will check for users with root permissions. If none are found, it will initialize a `root` user with the password `root`. Please change the username and password promptly.
 
+The user registration function requires the use of any `OAuth2` service, such as `Google`, `Github`, etc. For specific configuration, please refer to [documentation](https://synctv.wiki/#/oauth2).
+
 # Documentation
 https://synctv.wiki