Update README.md

README.md

@@ -27,13 +27,13 @@ task_categories:
 
 
 ## Prompt format
-
+```
 <|im_start|>system
 YOUR PROMPT<|im_end|>
 <|im_start|>user
 {prompt}<|im_end|>
 <|im_start|>assistant
-
+```
 
 ## Haiku Generation Prompt Example