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/nidoking.asm

@@ -1,10 +1,10 @@
-; NidokingPokedexEntry: ; 0x182463
 	db "DRILL@" ; species name
 	dw 407, 1370 ; height, weight
 
 	db   "It uses its thick"
 	next "arms, legs and"
 	next "tail to attack"
+
 	page "forcefully. Melee"
 	next "combat is its"
 	next "specialty.@"