add workflow

funasr/runtime/python/grpc/Readme.md

@@ -1,9 +1,10 @@
-## using paraformer with grpc
+## Using paraformer with grpc
 
 We can send streaming audio data to server in real-time with grpc client every 10 ms e.g., and get transcribed text when stop speaking.
 The audio data is in streaming, the asr inference process is in offline.
 
 
+## Steps
 
 Step 1) Generate protobuf file for grpc
 ```
@@ -18,4 +19,8 @@ python grpc_main_server.py --port 10095
 Step 3) start grpc client
 ```
 python grpc_main_client_mic.py --host 127.0.0.1 --port 10095
-```
+```
+
+
+## Workflow in desgin
+![avatar](proto/workflow.png)