fix(curriculum): adding explanation for indexOf in music player proje…

…ct (freeCodeCamp#53024)
weilirs · Jan 9, 2024 · 9c4e9d2 · 9c4e9d2
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diff --git a/...hallenges/_meta/learn-basic-string-and-array-methods-by-building-a-music-player/meta.json b/...hallenges/_meta/learn-basic-string-and-array-methods-by-building-a-music-player/meta.json
@@ -157,196 +157,200 @@
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diff --git a/...string-and-array-methods-by-building-a-music-player/6552385244ccf89b77d6b332.md b/...string-and-array-methods-by-building-a-music-player/6552385244ccf89b77d6b332.md
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