Update README.md

README.md

@@ -37,8 +37,25 @@ res = model.chat(
     image=image,
     msgs=msgs,
     tokenizer=tokenizer,
-    sampling=True,
-    temperature=0.7
+    sampling=True, # if sampling=False, beam_search will be used by default
+    temperature=0.7，
+    # system_prompt='' # pass system_prompt if needed
 )
 print(res)
+
+## if you want to use streaming, please make sure sampling=True and stream=True
+## the model.chat will return a generator
+res = model.chat(
+    image=image,
+    msgs=msgs,
+    tokenizer=tokenizer,
+    sampling=True,
+    temperature=0.7,
+    stream=True
+)
+
+generated_text = ""
+for new_text in res:
+    generated_text += new_text
+    print(new_text, flush=True, end='')
 ```