Update app.py

app.py

@@ -75,7 +75,7 @@ def predict(message, history, system_prompt, temperature, max_new_tokens, top_k,
         if system_prompt:
             prompt_builder.append(f"<<SYS>>\n{system_prompt}\n<</SYS>>\n\n")
         for human, assistant in history:
-            prompt_builder.append(f"{human} [/INST] {assistant}</s>[INST] "))
+            prompt_builder.append(f"{human} [/INST] {assistant}</s>[INST] ")
         prompt_builder.append(f"{message} [/INST]")
         instruction = ''.join(prompt_builder)
     else: