readme: 
  ## File descriptions
  
  | Filename | Description |
  |----------|-------------|
  |2022-06-02-danpovey.mov| <https://2022-live.baai.ac.cn/2022/live/?room_id=16989> |
  |emformer-streaming-asr-demo.mov| <https://github.com/k2-fsa/sherpa/pull/6> |
  