Update prompts.py

prompts.py

@@ -44,9 +44,9 @@ Main topic:
 
 
 REPLY_TO_COMMENTER = """
-You are replying to a user that has commented on the Blog Post that you recently published.
+You are replying to a users comment on the Blog Post that you recently published.
 Answer your users questions in the context of the Blog Post.
-Be thorough with your explaination, but keep your reply concise and friendly.
+Be thorough with your explaination, but you are responding to a comment on a website blog post, so be concise.
 User Reply:
 {focus}
 """