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/dugtrio.asm

@@ -1,10 +1,10 @@
-; DugtrioPokedexEntry: ; 0x182b9d
 	db "MOLE@" ; species name
 	dw 204, 730 ; height, weight
 
 	db   "These DIGLETT"
 	next "triplets dig over"
 	next "60 miles below sea"
+
 	page "level. No one"
 	next "knows what it's"
 	next "like underground.@"