Update app.py

app.py

@@ -38,7 +38,7 @@ def get_news(topic: str) -> str:
     """A tool that scraps the web to find latest news article related to a specific topic
 
     Args:
-        A detailed topic that will act as the search query
+        topic: A detailed topic that will act as the search query
     
     Returns:
         A latest news article from the web based on the provided topic