Update app.py

app.py

@@ -87,7 +87,7 @@ def get_weather_forecast(city: str, days: str=3) -> str:
         days: The number of days to forecast (int, default is 3).
 
     Returns:
-        A string with the following days forcast
+        A string containing the weather forecast in CSV format.
         Prints an error message if the API request fails.
     """