Improve examples

Signed-off-by: Jacob Laursen <jacob-github@vindvejr.dk>

Author: jlaur

src/configuration/rules-dsl.md

@@ -507,7 +507,7 @@ val Number epoch = (MyDateTimeItem.state as DateTimeType).instant.toEpochMilli
 val Number nowEpoch = now.toInstant.toEpochMilli
 
 // Convert DateTimeType to Java ZonedDateTime
-val javaZonedDateTime = (MyDateTimeItem.state as DateTimeType).getZonedDateTime(ZoneId.systemDefault)
+val javaZonedDateTime = (MyDateTimeItem.state as DateTimeType).getZonedDateTime(zoneId)
 
 // Convert Java ZonedDateTime to DateTimeType
 val DateTimeType date = new DateTimeType(now)
@@ -542,7 +542,7 @@ if(now.toInstant.isBefore((MyDateTimeItem.state as DateTimeType).instant)) ...
 if(now.toInstant.isAfter((MyDateTimeItem.state as DateTimeType).instant)) ...
 
 // Get the hour in the day from a DateTimeType
-val hour = (MyDateTimeItem.state as DateTimeType).getZonedDateTime(ZoneId.systemDefault).hour
+val hour = (MyDateTimeItem.state as DateTimeType).getZonedDateTime(zoneId).hour
 ```
 
 ##### Dimmer Item