Update app.py

app.py

@@ -14,7 +14,7 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
     """A tool that does nothing yet 
     Args:
         arg1: the first argument
-        arg2: the second argument
+        arg2: the second argument ü 
     """
     return "What magic will you build ?"