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diff --git a/‎…_tutorial/02_new-features/placeholder.md‎ ‎…tutorial/02_new-features/placeholder.txt‎app/pages/learn/01_tutorial/02_new-features/placeholder.md renamed to app/pages/learn/01_tutorial/02_new-features/placeholder.txt b/‎…_tutorial/02_new-features/placeholder.md‎ ‎…tutorial/02_new-features/placeholder.txt‎app/pages/learn/01_tutorial/02_new-features/placeholder.md renamed to app/pages/learn/01_tutorial/02_new-features/placeholder.txt
diff --git a/‎…rial/04_mastering-the-api/placeholder.md‎ ‎…ial/04_mastering-the-api/placeholder.txt‎app/pages/learn/01_tutorial/04_mastering-the-api/placeholder.md renamed to app/pages/learn/01_tutorial/04_mastering-the-api/placeholder.txt b/‎…rial/04_mastering-the-api/placeholder.md‎ ‎…ial/04_mastering-the-api/placeholder.txt‎app/pages/learn/01_tutorial/04_mastering-the-api/placeholder.md renamed to app/pages/learn/01_tutorial/04_mastering-the-api/placeholder.txt
diff --git a/‎…ganizing-your-application/placeholder.md‎ ‎…anizing-your-application/placeholder.txt‎app/pages/learn/01_tutorial/05_organizing-your-application/placeholder.md renamed to app/pages/learn/01_tutorial/05_organizing-your-application/placeholder.txt b/‎…ganizing-your-application/placeholder.md‎ ‎…anizing-your-application/placeholder.txt‎app/pages/learn/01_tutorial/05_organizing-your-application/placeholder.md renamed to app/pages/learn/01_tutorial/05_organizing-your-application/placeholder.txt
diff --git a/‎…6_getting-to-know-the-jvm/placeholder.md‎ ‎…_getting-to-know-the-jvm/placeholder.txt‎app/pages/learn/01_tutorial/06_getting-to-know-the-jvm/placeholder.md renamed to app/pages/learn/01_tutorial/06_getting-to-know-the-jvm/placeholder.txt b/‎…6_getting-to-know-the-jvm/placeholder.md‎ ‎…_getting-to-know-the-jvm/placeholder.txt‎app/pages/learn/01_tutorial/06_getting-to-know-the-jvm/placeholder.md renamed to app/pages/learn/01_tutorial/06_getting-to-know-the-jvm/placeholder.txt