Update app.py

app.py

@@ -24,7 +24,7 @@ def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return
 @tool
 def led_zeppelin_tool()-> 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 describes information about the rock band Led Zeppelin 
+    """A tool that describes information about the rock band Black Sabbath 
     Args:
     """
     return "They are a band from England. Jimmy Page is the guitar player. This is all I will tell you for now."