Update README.md

speechx/examples/ds2_ol/README.md

 # Deepspeech2 Streaming ASR
 
-* websocket
-Streaming ASR with websocket.
+* `websocket` - Streaming ASR with websocket.
 
-* aishell
-Streaming Decoding under aishell dataset, for local WER test and so on.
+* `aishell` - Streaming Decoding under aishell dataset, for local WER test.
 
 ## More
 The below is for developing and offline testing: