fix typo

app.py

@@ -48,7 +48,7 @@ def create_response_original(input_str,
                                            repetition_penalty=repetition_penalty,
                                            num_return_sequences=num_return_sequences, 
                                            num_beams=num_beams)                                 
-  outputs = []]                                 
+  outputs = []                                 
   for output_id in output_ids:
     output = tokenizer.decode(output_id, skip_special_tokens=True)
     outputs.append(output)