Update app.py

app.py

@@ -43,7 +43,7 @@ def find_hackernews_posts(message,history):
 
     result = crew.kickoff()
     formatted_result = "Here are some relevant Hacker News posts:\n\n"
-    for post in result.__str__.split('\n'):
+    for post in result.raw.split('\n'):
         if post.strip():
             formatted_result += f"• {post.strip()}\n"