Add --ws option to docs
@@ -28,6 +28,7 @@ equivalent keyword arguments, eg. `uvicorn.run(App, port=5000, debug=True, timeo
* `--loop` - Set the event loop implementation. The uvloop implementation provides greater performance, but is not compatible with Windows or PyPy. **Options:** *'auto', 'asyncio', 'uvloop'.* **Default:**: *'auto'*.
* `--http` - Set the HTTP protocol implementation. The httptools implementation provides greater performance, but it not compatible with PyPy, and requires compilation on Windows. **Options:** *'auto', 'h11', 'httptools'.* **Default:**: *'auto'*.
+* `--ws` - Set the WebSockets protocol implementation. Either of the `websockets` and `wsproto` packages are supported. Use `'none'` to deny all websocket requests. **Options:** *'auto', 'none', 'websockets', 'wsproto'.* **Default:**: *'auto'*.
## HTTP
