Update description

app.py

@@ -14,7 +14,7 @@ def chat(query, history=[]):
     _, history = model.chat(tokenizer, query, history, max_length=512)
     return history, history
 
-description = "This is an unofficial chatbot application based on open source model ChatGLM-6B, running on cpu(hence max_length is limited to 512)."
+description = "This is an unofficial chatbot application based on open source model ChatGLM-6B(https://github.com/THUDM/ChatGLM-6B), running on cpu(therefore max_length is limited to 512). \nIf you want to use this chat bot in your space, 'Duplicate this space' by click the button close to 'Linked Models'. \n"
 title = "ChatGLM-6B Chatbot"
 examples = [["Hello?"], ["你好。"], ["介绍清华"]]