Fixed issue with event parameter docstring

app.py

@@ -12,7 +12,7 @@ def add_event_to_calendar(event_name:str, start:str, end:str)-> str: # it's impo
     """A tool that allows you to create events on google calendar. 
         Time should be represented in this format: 2015-05-28T09:00:00-00:00
     Args:
-        event: The name of the event.
+        event_name: The name of the event.
         start: The start time of the event represented as a datetime str.
         end: The end time of the event respresented as a datetime str.
     """