add stop word on openai api ChatCompletion

README_CN.md

@@ -323,6 +323,7 @@ for chunk in openai.ChatCompletion.create(
         {"role": "user", "content": "你好"}
     ],
     stream=True
+    # 流式输出的自定义stopwords功能尚未支持，正在开发中
 ):
     if hasattr(chunk.choices[0].delta, "content"):
         print(chunk.choices[0].delta.content, end="", flush=True)
@@ -333,7 +334,8 @@ response = openai.ChatCompletion.create(
     messages=[
         {"role": "user", "content": "你好"}
     ],
-    stream=False
+    stream=False,
+    stop=[] # 在此处添加自定义的stop words 例如ReAct prompting时需要增加： stop=["Observation:"]。
 )
 print(response.choices[0].message.content)
 ```