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/ariados.asm

@@ -1,10 +1,10 @@
-; AriadosPokedexEntry: ; 0x1cd083
 	db "LONG LEG@" ; species name
 	dw 307, 740 ; height, weight
 
 	db   "Rather than mak-"
 	next "ing a nest in one"
 	next "specific spot, it"
+
 	page "wanders in search"
 	next "of food after"
 	next "darkness falls.@"