Update how_to_download_models_en.md

docs/how_to_download_models_en.md

@@ -35,7 +35,7 @@ model_dir = snapshot_download('wanderkid/PDF-Extract-Kit')
 Alternatively, you can use Git to clone the model repository from ModelScope:
 
 ```bash
-git clone https://www.modelscope.cn/wanderkid/PDF-Extract-Kit.git
+git lfs clone https://www.modelscope.cn/wanderkid/PDF-Extract-Kit.git
 ```
 
 
@@ -57,4 +57,4 @@ Put [model files]() here:
 │       ├── tokenizer_config.json
 │       └── tokenizer.json
 └── README.md
-```
\ No newline at end of file
+```