Update actions.md (openhab#1289)

see also https://community.openhab.org/t/wip-ephemeris-documentation/84536/36

addons/actions.md

@@ -210,7 +210,7 @@ Action | Returns
 `getNextBankHoliday` | name of the next bank holiday
 `getNextBankHoliday(<file>)` | name of the next bank holiday defined in `<file>`
 `getNextBankHoliday(<offset>)` | name of the next bank holiday after `<offset>` days from today
-`getNextBankHoliday(<offset>, <file>)` | name of the next bank holiday after `<offset>` days from today defined in `<file>`. :warning: This action is broken in OH 2.5.x. Use `getNextBankHoliday(<datetime>, <file>)` instead by replacing `<datetime>` with `ZonedDateTime.now().plusDays(<offset>)`
+`getNextBankHoliday(<offset>, <file>)` | name of the next bank holiday after `<offset>` days from today defined in `<file>`. :warning: This action is broken in OH 2.5.x. Use `getNextBankHoliday(<datetime>, <file>)` instead by replacing `<datetime>` with `new DateTimeType().zonedDateTime.now().plusDays(<offset>)`
 `getNextBankHoliday(<datetime>)` | name of the next bank holiday after the day defined by the `ZonedDateTime` `<datetime>`
 `getNextBankHoliday(<datetime>, <file>)` | name of the next bank holiday after the day defined by the `ZonedDateTime` `<datetime>` defined in `<file>`
 `isBankHoliday` | `true` if today is a bank holiday (see below), `false` otherwise