There are three parts to the Frontity documentation.
tutorial.frontity.org is the introductory step-by-step tutorial which you've just completed. Yay! 🙌
docs.frontity.org is our generic documentation with the Getting Started and other guides, articles introducing core concepts, description of the framework architecture, etc...
api.frontity.org is the API reference. Once you've got the basics and the core concepts of working with Frontity nailed this is where you'll find detailed technical descriptions for the CLI, packages and plugins available in Frontity.