Checkend Sample Product
Some other info
This is some text before the tabs.
This is the description under Tab #1.
You precede it with a "Heading" tag. In this case, it's a Heading 4 tag (<h4> in HTML code).
You can add links here, images, and even videos. Pretty much anything that you can add from within the Shopify product editor.
This is the description under Tab #2