Just:
- Download and run "install-wsr.exe"
- Select the folder with the game and press "Next" once or twice
- Start the game client and press F10
- Insert your YouTube broadcast token and click "Start Stream"
At the moment there are some limitations:
- non-adaptive resolution (always 1920x1080)
- works only on D3D11-compatible devices (preferences are hard coded)
- only one RTMP server is supported (YouTube)