Am new to GoDaddy Website Builder.
Thank you for posting. While we don't have a guide specifically for what you're trying to do, this guide on Style Text is close to what you need. You'd just need to follow those steps and use the hyperlink option in the toolbar to turn your text into a hyperlink. Since you're new to GoCentral, I think you'll find this guide helpful. It has a lot of the guides for GoCentral grouped in one place.