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/entei.asm

@@ -1,10 +1,10 @@
-; EnteiPokedexEntry: ; 0x1d15dd
 	db "VOLCANO@" ; species name
 	dw 607, 4370 ; height, weight
 
 	db   "This brawny"
 	next "#MON courses"
 	next "around the earth,"
+
 	page "spouting flames"
 	next "hotter than a"
 	next "volcano's magma.@"