Update app.py

app.py

@@ -11,7 +11,7 @@ from Gradio_UI import GradioUI
 @tool
 def repeat(arg1:str, arg2:int)-> str: #it's import to specify the return type
     #Keep this format for the description / args / args description but feel free to modify the tool
-    """A tool that does nothing yet 
+    """Repeat a string n times 
     Args:
         arg1: the first argument
         arg2: the second argument