If you are wanting to add a heading to your Sauce embed, or perhaps add some content below it - the method will depend on the page on which you are inserting your Sauce code snippet. The Sauce embed is designed to seamlessly fit into any page it is inserted into - and thus comes without a header or any surrounding content.
To add a header, for example, you'll need to add it yourself above where you have inserted the Sauce code embed. If you are unsure of how to achieve this, please refer to the Shopify documentation - specifically the sections regarding the editing of pages and theme files.