Customize up to three promotional images in the area directly above your footer. Use this area to highlight new products, limited-run collections, and special sales or discounts. Like the header and footer, the promotions section is fixed and cannot be repositioned.
Access the promotions section in the theme editor
Go to the theme editor (Customize), then open Promotions
Give your Promotions a Heading by completing the first field. Select Show border to include a line above the section.
Add images and links
You can add up to three promotional images to this section. Click Add promotion, then upload your Image and Link.