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/charmander.asm

@@ -1,10 +1,10 @@
-; CharmanderPokedexEntry: ; 0x1817db
 	db "LIZARD@" ; species name
 	dw 200, 190 ; height, weight
 
 	db   "If it's healthy,"
 	next "the flame on the"
 	next "tip of its tail"
+
 	page "will burn vigor-"
 	next "ously, even if it"
 	next "gets a bit wet.@"