Update README.md

README.md

@@ -14,7 +14,7 @@ To reproduce our training experiments and evaluation results please use our gith
 <img src="./sys.jpg" width="1024" height="600"></img>
 PairDETR extracts embeddings using ResNet-50 followed by a transformer to predict pairs. During training, pairs are matched with  ground-truth and corrected using approximated matching loss.
 ## Inference example with transformers:
-```
+```python
 import os
 import numpy as np 
 import pandas as pd