update documentation for refactored scripts location...
update documentation for refactored scripts location (see issue https://git.smhi.se/ec-earth/ecearth4/-/issues/23 and MR https://git.smhi.se/ec-earth/ecearth4/-/merge_requests/67)
update documentation for refactored scripts location (see issue https://git.smhi.se/ec-earth/ecearth4/-/issues/23 and MR https://git.smhi.se/ec-earth/ecearth4/-/merge_requests/67)