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/ampharos.asm

@@ -1,10 +1,10 @@
-; AmpharosPokedexEntry: ; 0x1cd626
 	db "LIGHT@" ; species name
 	dw 407, 1360 ; height, weight
 
 	db   "When it gets dark,"
 	next "the light from its"
 	next "bright, shiny tail"
+
 	page "can be seen from"
 	next "far away on the"
 	next "ocean's surface.@"