Update README.md

README.md

@@ -66,6 +66,7 @@ Based on the code for the MPT 30B Chat Space, I believe this is the correct prom
 A conversation between a user and an LLM-based AI assistant. The assistant gives helpful and honest answers.<|im_end|>
 <|im_start|>user
 prompt goes here<|im_end|>
+<|im_start|>assistant
 ```
 
 ## A note regarding context length: 8K