Update README.md

README.md

@@ -48,6 +48,7 @@ hubert_ecg.load_state_dict(checkpoint['model_state_dict']) # fine-tuned model re
 ```
 
 ## Easier usage
+(for pre-trained models only)
 ```python
 from transformers import AutoModel
 size = 'small' # any size from small, base, large