diff --git a/_config.yml b/_config.yml
index a976fca..a8c298b 100644
--- a/_config.yml
+++ b/_config.yml
@@ -40,6 +40,7 @@ style:
     background_img: /images/bg.svg   # You can use local image or image external link
     description: Keep writing and Keep loving.
 
+  # Scroll style settings
   scroll:
     progress_bar:
       enable: false