Fix E266 flake8 warning (x90).

templates/adding_a_new_example_script/run_xxx.py

@@ -401,7 +401,7 @@ def load_and_cache_examples(args, tokenizer, evaluate=False, output_examples=Fal
 def main():
     parser = argparse.ArgumentParser()
 
-    ## Required parameters
+    # Required parameters
     parser.add_argument(
         "--train_file", default=None, type=str, required=True, help="SQuAD json for training. E.g., train-v1.1.json"
     )
@@ -434,7 +434,7 @@ def main():
         help="The output directory where the model checkpoints and predictions will be written.",
     )
 
-    ## Other parameters
+    # Other parameters
     parser.add_argument(
         "--config_name", default="", type=str, help="Pretrained config name or path if not the same as model_name"
     )