Update README.md

README.md

@@ -50,7 +50,11 @@ Here is my contribution.
 Replace {system} with your system prompt, and {prompt} with your prompt instruction.
 
 ```
-GPT4 System: {system}<|end_of_turn|>GPT4 User: {prompt}<|end_of_turn|>GPT4 Assistant:
+<|im_start|>system
+{system}<|im_end|>
+<|im_start|>user
+{prompt}<|im_end|>
+<|im_start|>assistant
 ```
 
 ### Bug fixes