(MC) How do you subtitle?

I was wondering how to subtitle like the enchanted books in Minecraft. (e.g. Make a keycard)

You go to mcstacker.net

then on / give

then you enter the name of the item you want to have at giveitem

then you enter the subtitles in "Lore"

For example, if you want to remove "minecraft: enchanted_book NBT: 1 property (s)", you have to tick HideOthers at giveitem under HideFlags.

Very easily

/ give @p minecraft: item_was_du_willst {display: {Lore: ['[{"text": "subtitle_was_du_willst"}]']}}

Oh thank you!