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/hoppip.asm

@@ -1,10 +1,10 @@
-; HoppipPokedexEntry: ; 0x1cd8b5
 	db "COTTONWEED@" ; species name
 	dw 104, 10 ; height, weight
 
 	db   "It can be carried"
 	next "away on even the"
 	next "gentlest breeze."
+
 	page "It may even float"
 	next "all the way to the"
 	next "next town.@"