java
diff --git a/‎app/pages/learn/01_tutorial/02_new-features/placeholder.md‎ b/‎app/pages/learn/01_tutorial/02_new-features/placeholder.md‎
diff --git a/‎app/pages/learn/01_tutorial/04_mastering-the-api/placeholder.md‎ b/‎app/pages/learn/01_tutorial/04_mastering-the-api/placeholder.md‎
diff --git a/‎app/pages/learn/01_tutorial/05_organizing-your-application/placeholder.md‎ b/‎app/pages/learn/01_tutorial/05_organizing-your-application/placeholder.md‎
diff --git a/‎app/pages/learn/01_tutorial/06_getting-to-know-the-jvm/placeholder.md‎ b/‎app/pages/learn/01_tutorial/06_getting-to-know-the-jvm/placeholder.md‎