Document Three Island scripts

data/maps/ThreeIsland_House5/text.inc

@@ -1,4 +1,4 @@
-gUnknown_81A3469:: @ 81A3469
+ThreeIsland_House5_Text_ImNotLostelle:: @ 81A3469
     .string "Me?\n"
     .string "I'm not LOSTELLE.\p"
     .string "She's probably gone to the\n"
@@ -6,7 +6,7 @@ gUnknown_81A3469:: @ 81A3469
     .string "She picks BERRIES there for making\n"
     .string "lunch.$"
 
-gUnknown_81A34DB:: @ 81A34DB
+ThreeIsland_House5_Text_IllGoPlayWithLostelle:: @ 81A34DB
     .string "I think I'll go play with LOSTELLE\n"
     .string "today.$"