Adds referee screen and deities.

Updates bestiary with links to nonhuman racial modifiers.

src/pages/races/drow.md

@@ -64,4 +64,4 @@ Sees heat signatures up to 60', even in total darkness.
 
 ### Light Sensitivity
 
--2 to attack rolls and -1 to AC when in bright light (daylight, _Continual Light_, etc.).
+-2 to attack rolls and -1 to AC when in bright light (daylight, [Continual Light](/spells/continual-light.html), etc.).