Update offlinePush.mdx

Author: std-s

docs/guides/solution/offlinePush.mdx

@@ -41,6 +41,6 @@ enable: #选择 getui 或者 fcm
 ### 2. 客户端配置
 
 **Flutter 客户端** 的详细接入方式可参考下方链接：
-[OpenIM Flutter Demo 配置说明](https://github.com/openimsdk/openim-flutter-demo/blob/main/CONFIGKEY.zh-CN.md)
-
+- [OpenIM Flutter Demo 配置说明](https://github.com/openimsdk/openim-flutter-demo/blob/main/CONFIGKEY.zh-CN.md)
+- [OpenIM iOS Demo 配置说明](https://github.com/openimsdk/openim-ios-demo/blob/main/CONFIGKEY.zh-CN.md)