Added Alpaca instructions

Added instructions for prompting Alpaca style.

README.md

@@ -16,5 +16,15 @@ CodePhi2 is finetuning of the Microsoft Phi-2 LLM with **2.7 billion** parameter
 
 Coming Soon.
 
+## Instruction Format (Alpaca)
+
+CodePhi2 has been finetuned on the Alpaca instruction format, and as such should be prompted like below:
+```
+Below is an instruction that describes a task. Write a response that appropriately completes the request.
+### Instruction:
+{instruction}
+
+### Response:
+```
 #### Notes
 If you are using transformers>=4.36.0, always load the model with trust_remote_code=True to prevent side-effects.