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/weedle.asm

@@ -1,10 +1,10 @@
-; WeedlePokedexEntry: ; 0x181bb4
 	db "HAIRY BUG@" ; species name
 	dw 100, 70 ; height, weight
 
 	db   "The barb on top of"
 	next "its head secretes"
 	next "a strong poison."
+
 	page "It uses this toxic"
 	next "barb to protect"
 	next "itself.@"