In this article:
Edit homepage content and it's meta description
Publish the content at homepage layout
Publish a content at homepage, write whatever message you wish to deliver to customer, attach photo / video for better visual effects. Boost any seasonal promotion or sales by display a message about latest promotion, so the efforts you putted to drive traffic won't be wasted.
2. Edit homepage content and it's meta description
2.1 Go to Admin Panel> Online Store > Pages > Home > edit your homepage content.
2.2 Scroll down to the bottom and click on 'Edit website SEO'.
2.3 Edit your homepage meta description > Save.
3. Publish the content at homepage layout
3.1 Go to Online Store > Themes > Customize > Layout > choose Page content at the section you prefer > Save.
Hope this help!