Merge pull request #1899 from PaddlePaddle/Jackwaterveg-patch-1

[Doc] Create streaming_asr_demo.rst

docs/source/index.rst

@@ -54,6 +54,7 @@ Contents
    :caption: Demos
 
    demo_video
+   streaming_asr_demo_video
    tts_demo_video
    streaming_tts_demo_video
 

docs/source/streaming_asr_demo_video.rst

+Streaming ASR Demo Video
+==================
+
+.. raw:: html
+     
+    <video controls width="1024">
+
+    <source src="https://paddlespeech.bj.bcebos.com/demos/asr_demos/streaming_ASR_slice.mp4" type="video/mp4">
+    Sorry, your browser doesn't support embedded videos.
+    </video>