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/raikou.asm

@@ -1,10 +1,10 @@
-; RaikouPokedexEntry: ; 0x1d156b
 	db "THUNDER@" ; species name
 	dw 603, 3920 ; height, weight
 
 	db   "This rough #MON"
 	next "stores energy"
 	next "inside its body,"
+
 	page "then sweeps across"
 	next "the land, shooting"
 	next "off electricity.@"