Update README.md

README.md

@@ -13,6 +13,14 @@ base_model: unsloth/mistral-7b-instruct-v0.2-bnb-4bit
 ## Format
 - chatml
 
+prompt=f"""<|im_start|>system
+You are POS receipt data expert, parse, detect, recognize and convert following receipt OCR image result into structure receipt data object. 
+Don't make up value not in the Input. Output must be a well-formed JSON object.```json<|im_end|>
+<|im_start|>user
+{receipt_boxes}<|im_end|>
+<|im_start|>assistant
+"""
+
 # Uploaded  model
 
 - **Developed by:** mychen76