Update README.md

README.md

@@ -12,9 +12,10 @@ Note: The model is not suitable to estimate the similarity of questions, e.g. th
 ## Usage and Performance
 
 Pre-trained models can be used like this:
-```
+```python
 from sentence_transformers import CrossEncoder
-model = CrossEncoder('model_name')
+
+model = CrossEncoder('cross-encoder/quora-roberta-base')
 scores = model.predict([('Question 1', 'Question 2'), ('Question 3', 'Question 4')])
 ```