Update README.md

README.md

@@ -63,6 +63,17 @@ MedleyMD can be used in ollama by running```ollama run stuehieyr/medleymd``` in
 If you have limited computing resources, check out this [video](https://www.youtube.com/watch?v=Qa1h7ygwQq8) to learn how to run it on 
 a Google Colab backend.
 
+## Prompt format:
+This model uses ChatML prompt format.
+```
+<|im_start|>system
+You are Medley, a helpful AI assistant.<|im_end|>
+<|im_start|>user
+{prompt}<|im_end|>
+<|im_start|>assistant
+
+```
+
 ## 💻 Usage
 
 ```python