diff --git a/image/7 b/image/7.png similarity index 100% rename from image/7 rename to image/7.png diff --git a/image/8 b/image/8.png similarity index 100% rename from image/8 rename to image/8.png diff --git a/image/9 b/image/9.png similarity index 100% rename from image/9 rename to image/9.png