diff --git a/Devterm-CM3-rpi-os-image.md b/Devterm-CM3-rpi-os-image.md
index 9963558..166a579 100644
--- a/Devterm-CM3-rpi-os-image.md
+++ b/Devterm-CM3-rpi-os-image.md
@@ -60,9 +60,9 @@ The following files changed
 * /etc/xdg/pcmanfm/LXDE-pi/desktop-items-1.conf 
 * /etc/lightdm/pi-greeter.conf 
 * /home/pi/.config/pcmanfm/LXDE-pi/desktop-items-0.conf 
-* 
-Delete wallpaper address temple.jpg
-Modify the desktop_bg color to #202020 
+
+Delete wallpaper address `temple.jpg`  
+Modify the `desktop_bg` color to `#202020`