We have a tutorial guide that you can follow to add the graphic or image to your webpage.
First, login to your website as admin in order to access the dashboard.
Next, follow the below link for the steps (screenshots provided).
http://kb.restaurantengine.com/insert-an-image/
Once you are done adding the image to your webpage, make sure to click ‘Update’ at the right hand section of your page to publish the changes.
Should you need further assistance on this matter, please feel free to send us a copy of the image, and link for the image, so we can make the necessary update for you.