diff --git a/Create-DevTerm-CM3-OS-image-from-scratch.md b/Create-DevTerm-CM3-OS-image-from-scratch.md
index e5c57f2..111fe0a 100644
--- a/Create-DevTerm-CM3-OS-image-from-scratch.md
+++ b/Create-DevTerm-CM3-OS-image-from-scratch.md
@@ -64,7 +64,7 @@ The following files changed
 * /etc/lightdm/pi-greeter.conf 
 * /home/pi/.config/pcmanfm/LXDE-pi/desktop-items-0.conf 
 
-Delete wallpaper address temple.jpg,change the desktop_bg color to #202020   
+Delete wallpaper address `temple.jpg`,change the `desktop_bg` color to `#202020`   
 change `/etc/hostname` to clockworkpi  
 in `/boot/cmdline.txt` ,add `fbcon=rotate:1`, remove `quiet`