Add Bard class

Move some stuff around.

src/pages/classes/bloodmage.md

@@ -26,9 +26,9 @@ Bloodmages are arcane spellcasters that use their own life force, rather than th
 
 ### Arcane Magic
 
--   Can cast any spell by shedding blood (1 HP / spell level).
+-   Can cast any known spell by shedding blood (1 HP / spell level).
 -   Carries a spell book (or equivalent) with known spells in it.
--   Start with one spell, gain one each time they level up.
+-   Starts with one spell, learns an additional one each time they level up.
 -   Maximum spell level that can be learned or cast is shown in [Level Advancement](#advancement) table.
 -   Can conduct magical research.