Update README.md

README.md

@@ -24,7 +24,8 @@ pip install flash-attn --no-build-isolation
 ```
 
 Using AutoModelForMaskedLM:
-```
+
+```python
 from transformers import AutoTokenizer, AutoModelForMaskedLM
 
 model_id = "llm-jp/llm-jp-modernbert-base-v4-ja-stage2-200k"