Update README.md

bert_config_file

Author: JunnYu

README.md

@@ -100,7 +100,7 @@ print(tf_outputs_sentence)
 ```bash
 python convert_roformer_original_tf_checkpoint_to_pytorch.py \
     --tf_checkpoint_path=xxxxxx/chinese_roformer_L-12_H-768_A-12/bert_model.ckpt \
-    --roformer_config_file=pretrained_models/chinese_roformer_base/config.json \
+    --bert_config_file=pretrained_models/chinese_roformer_base/config.json \
     --pytorch_dump_path=pretrained_models/chinese_roformer_base/pytorch_model.bin
 ```