Update app.py

app.py

@@ -81,7 +81,7 @@ def generater(message, history, temperature, top_p, top_k):
     for user_message, assistant_message in history:
         prompt += model.config["promptTemplate"].format(user_message)
         
-        prompt += assistant_message "</s>"
+        prompt += assistant_message + "</s>"
         
     prompt += model.config["promptTemplate"].format(message)