Revamp challenge formatting

content/challenges/67.md

@@ -90,11 +90,11 @@ japanese:
       - pos: verb
         text: なる
         dictionary: 成る
+song:
+  japanese: 一透星
+  english: First Magnitude Star
+youtube: UU6y-fGTPsM
 date: 2022-06-21
 ---
 
 **Note:** In these lyrics, 「[時]{とき}」is written as 「一瞬」(normally 「[いっしゅん](https://jisho.org/word/一瞬)」). This is to add more nuance to the lyrics and is called [[義]{ぎ}[訓]{くん}](https://morg.systems/Gikun).
-
-This week's challenge is from *First Magnitude Star*'s lyrics ([YouTube](https://www.youtube.com/watch?v=UU6y-fGTPsM)):
-
-{{< youtube UU6y-fGTPsM >}}