Fix README mentioned of nth weekday

Add example of nth weekday

Author: Gilthoniel

README.md

@@ -32,4 +32,4 @@ This package implements the specification found in [Wikipedia](https://en.wikipe
 * `,` can be used to list values (e.g. `1,2,3` means values 1, 2 and 3).
 * `/` can be used to specify an interval (e.g. `1/5` means values 1, 6, 11, 16, etc...).
 * `L` when used in the month field specifies the last day of the month and Saturday when used in the week day field. Using a digit before the character in the week day field specifies the nth last week day of the month (e.g. `1L` for the last Monday of the month). An offset can also be used for the month field (e.g. `L-2` for the second last day of the month).
-* `#` can be used to specify the nth week day of the month (e.g. `6#3` for the third (`3`) Friday (`6`) of the month).
+* `#` can be used to specify the nth week day of the month (e.g. `6#3` for the third (`3`) Saturday (`6`) of the month).

examples_test.go

@@ -82,3 +82,20 @@ func ExampleSchedule_Upcoming_everySecondToLastDayOfEveryTwoMonths() {
 	// 2024-01-30 00:00:00 +0000 UTC
 	// 2024-03-30 00:00:00 +0000 UTC
 }
+
+func ExampleSchedule_Upcoming_everyThirdThursdayOfEachMonth() {
+	schedule := gocron.MustParse("0 0 0 ? * 4#3")
+
+	iter := schedule.Upcoming(time.Date(2023, time.June, 4, 0, 0, 0, 0, time.UTC))
+	for i := 0; i < 5 && iter.HasNext(); i++ {
+		next := iter.Next()
+		fmt.Println(next)
+	}
+
+	// Output:
+	// 2023-06-15 00:00:00 +0000 UTC
+	// 2023-07-20 00:00:00 +0000 UTC
+	// 2023-08-17 00:00:00 +0000 UTC
+	// 2023-09-21 00:00:00 +0000 UTC
+	// 2023-10-19 00:00:00 +0000 UTC
+}