Clean up comments

Base data: types uniquely lacked a comment; items on one line; distinguish unknowns
Dex entries: don't imply that pointers don't exist

data/pokemon/dex_entries/marowak.asm

@@ -1,10 +1,10 @@
-; MarowakPokedexEntry: ; 0x1b90d2
 	db "BONEKEEPER@" ; species name
 	dw 303, 990 ; height, weight
 
 	db   "Somewhere in the"
 	next "world is a ceme-"
 	next "tery just for"
+
 	page "MAROWAK. It gets"
 	next "its bones from"
 	next "those graves.@"