style: clarify check_use patch comment

Author: nh6574

lovely/center.toml

@@ -557,7 +557,7 @@ match_indent = true
 position = 'at'
 payload = '''elseif not nc then draw_card(G.hand, G.play, 1, 'up', true, card, nil, mute) end'''
 
-# Card:check_use - allow Ankh to be selectable from packs even if slots are full
+# Card:check_use - allow Ankh to be selectable from packs even if joker slots are full
 [[patches]]
 [patches.pattern]
 target = 'card.lua'