Update app.py

app.py

@@ -12,7 +12,7 @@ def wikipedia_page_tool(page: str)-> str:
     """Retrieve a Wikipedia page. Useful for learning about a particular concept that isn't private information.
 
     Args:
-        page (str): Title of the page to read.
+        page: Title of the page to read.
     """
     import wikipedia