Update README.md

README.md

@@ -5,6 +5,37 @@
 
 阿里云盘 WebDav 服务
 
+## Installation
+
+You can download prebuilt binaries from [GitHub Releases](https://github.com/messense/aliyundrive-webdav/releases).
+Or install it from PyPI:
+
+```bash
+pip install aliyundrive-webdav
+```
+
+## Usage
+
+```bash
+aliyundrive-webdav --help
+aliyundrive-webdav 0.1.0
+
+USAGE:
+    aliyundrive-webdav [FLAGS] [OPTIONS] --refresh-token <refresh-token>
+
+FLAGS:
+    -I, --auto-index    Automatically generate index.html
+    -h, --help          Prints help information
+    -V, --version       Prints version information
+
+OPTIONS:
+    -W, --auth-password <auth-password>    WebDav authentication password
+    -U, --auth-user <auth-user>            WebDav authentication username
+        --host <host>                      Listen host [default: 127.0.0.1]
+    -p, --port <port>                      Listen port [default: 8080]
+    -r, --refresh-token <refresh-token>    Aliyun drive refresh token [env: REFRESH_TOKEN=]
+```
+
 ## License
 
 This work is released under the MIT license. A copy of the license is provided in the [LICENSE](../LICENSE) file.