Templating/Custom-CSS.md

@@ -20,7 +20,7 @@ div.slides {
 
 ## Adding a background image to all slides
 
-If you want to include a background image on **all** slides, e.g. the Uni Würzburg banner you can do this by adding the following code to the CSS file
+If you want to include a background image on **all** slides, e.g. the Uni Würzburg banner you can do this by adding the following code to the CSS file (replace `assets/title-banner-jmu.jpg` with the location of your title banner file):
 
 ```css
 body {