Update README.md

README.md

@@ -48,8 +48,8 @@ Finally, we convert the pre-trained model into Huggingface's format:
 
 ```
 python3 scripts/convert_roberta_extractive_qa_from_uer_to_huggingface.py --input_model_path extractive_qa_model.bin \
-                                                        --output_model_path pytorch_model.bin \
-                                                        --layers_num 12
+                                                                         --output_model_path pytorch_model.bin \
+                                                                         --layers_num 12
 ```
 
 ### BibTeX entry and citation info