Update README.md: make it directly usable from huggingface preview ui

README.md

@@ -1,8 +1,9 @@
 ---
 language: zh
-widget: 
-- text: "你们宿舍都是这么厉害的人吗"
+widget:
+- text: 你们宿舍都是这么厉害的人吗
 license: apache-2.0
+pipeline_tag: conversational
 ---
 
 # liam168/chat-DialoGPT-small-zh
@@ -36,4 +37,4 @@ for step in range(5):
 
 	# pretty print last ouput tokens from bot
 	print("Answer: {}".format(tokenizer.decode(chat_history_ids[:, bot_input_ids.shape[-1]:][0], skip_special_tokens=True)))
-```
+```