By default, the Home page will use a Categories and Products layout for the home page. You can create a custom Page that can be used for the Home page instead.
Go to Sites > Pages > Add New Page. After adding the text, images, links, etc. Save the page.
Go to Sites > Settings > General Info > Home Page URL and change the selection from Default to the Page you just created. Save. Your Home page will now use your custom page instead of the default Categories/Products page. Remember that changes to the Site can take as long as 3 minutes to display in the website.