Add descriptions to tarot cards

[LudumSi]

Having the tarot cards in the game is cool, but they never get used. Probably because they don't say what the card symbolizes upon examination. Nobody except full-on tarot freaks are going to have them all memorized. While it's not hard to have them up in another tab, it would be a nice QoL feature. 

It would be extra neat to also have descriptions of what they show, with a spessman theme.