diff --git a/exercises/13/exercises.md b/exercises/13/README.md similarity index 100% rename from exercises/13/exercises.md rename to exercises/13/README.md diff --git a/exercises/15/exercises.md b/exercises/15/README.md similarity index 100% rename from exercises/15/exercises.md rename to exercises/15/README.md diff --git a/exercises/16/exercises.md b/exercises/16/README.md similarity index 100% rename from exercises/16/exercises.md rename to exercises/16/README.md diff --git a/exercises/17/exercises.md b/exercises/17/README.md similarity index 100% rename from exercises/17/exercises.md rename to exercises/17/README.md diff --git a/exercises/21/exercises.md b/exercises/21/README.md similarity index 100% rename from exercises/21/exercises.md rename to exercises/21/README.md diff --git a/exercises/23/exercises.md b/exercises/23/README.md similarity index 100% rename from exercises/23/exercises.md rename to exercises/23/README.md diff --git a/exercises/24/exercises.md b/exercises/24/README.md similarity index 100% rename from exercises/24/exercises.md rename to exercises/24/README.md diff --git a/exercises/25/exercises.md b/exercises/25/README.md similarity index 100% rename from exercises/25/exercises.md rename to exercises/25/README.md diff --git a/exercises/exercises.md b/exercises/README.md similarity index 100% rename from exercises/exercises.md rename to exercises/README.md diff --git a/exercises/advanced/exercises.md b/exercises/advanced/README.md similarity index 100% rename from exercises/advanced/exercises.md rename to exercises/advanced/README.md