Update app.py

app.py

@@ -84,7 +84,7 @@ def get_weather_forecast(city: str, days: str=3) -> str:
 
     Args:
         city: a sting of the name of the city to get weather
-        days: The number of days to forecast (int, default is 3).
+        days: The number of days to forecast including today. So the weather 4 days from now would need an input of 5 (int, default is 3).
 
     Returns:
         A string containing the weather forecast in CSV format.