Update readme.md

zhifu gao

2023-07-25 1dcdd5f8a618ba7ea7eb8d7c9b5f3d0acf5a3d9d

 funasr/runtime/python/websocket/README.md

@@ -47,6 +47,14 @@
cd funasr/runtime/python/websocket
pip install -r requirements_client.txt
```
If you want infer from videos, you should install `ffmpeg`
```shell
apt-get install -y ffmpeg #ubuntu
# yum install -y ffmpeg # centos
# brew install ffmpeg # mac
# winget install ffmpeg # wins
pip3 install websockets ffmpeg-python
```

### Start client
#### API-reference