fix typo for schedule name

app.go

@@ -380,7 +380,7 @@ func (a *App) NextSchedule(now time.Time) (string, error) {
 			}
 		}
 		if t.Year() < now.Year() || t.Month() != now.Month() {
-			return "month", nil
+			return "monthly", nil
 		}
 	}
 
@@ -395,7 +395,7 @@ func (a *App) NextSchedule(now time.Time) (string, error) {
 		ny, nw := now.ISOWeek()
 		ty, tw := t.ISOWeek()
 		if ty < ny || tw < nw {
-			return "month", nil
+			return "weekly", nil
 		}
 	}