Document a bit of anims

src/battle_anim_effects_2.c

@@ -889,7 +889,7 @@ const struct SpriteTemplate gUnknown_08593958 =
     .callback = sub_8105DE8,
 };
 
-const struct SpriteTemplate gUnknown_08593970 =
+const struct SpriteTemplate gMagentaHeartSpriteTemplate =
 {
     .tileTag = ANIM_TAG_MAGENTA_HEART,
     .paletteTag = ANIM_TAG_MAGENTA_HEART,
@@ -3286,7 +3286,7 @@ static void sub_810627C(struct Sprite *sprite)
     }
 }
 
-void sub_81062E8(u8 taskId)
+void AnimTask_HeartsBackground(u8 taskId)
 {
     struct BattleAnimBgData animBg;