Update README.md

README.md

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 # ushio-session
 
+Cloud Storage solution for frontend webpage development.   
+ 
+[简体中文（推荐）](./zh.md)
 
-## 定位
-ushio-session是js-session的前身，内置于[iotcat/ushio-js](https://github.com/iotcat/ushio-js)。在使用[iotcat/fp](https://github.com/iotcat/fp)定位设备的基础上，前端用户可以像使用cookie一样使用session。session不依赖与cookie，使用服务端存储。因为这个特性，**session可以解决cookie所难以解决的跨域问题**。
+## Positioning
+ushio-session is the predecessor of js-session, built in [iotcat/ushio-js](https://github.com/iotcat/ushio-js). On the basis of using [iotcat/fp](https://github.com/iotcat/fp) to locate the device, front-end users can use sessions like cookies. The session does not depend on cookies and uses server-side storage. Because of this feature, **session can solve cross-domain problems that cookies are difficult to solve**.
 
 
-## 指令
- + `session.get(key)`: 根据键名获取
- + `session.set(key, value)`: 用键名和键值新建或更新一条session
- + `session.del(key)`: 根据键名删除session
+## Instructions
+  + `session.get(key)`: Get according to the key name
+  + `session.set(key, value)`: Create or update a session with key name and key value
+  + `session.del(key)`: delete session based on key name
+ 
  
+## Application
+ushio-session has now been widely used in the ushio website system. You have ushio-session support behind many of the services on the websites supported by Ushio. such as:
+
+  - Cross-domain and cross-device music continues to play
+  - User management identification
+  - Language preference record
+  - Video playback position is recorded across devices
+  - User ID management
+  - etc..