Resources is an advanced documentation section that uses custom post types to allow for special search functionality.
To use Resources, simply add the section on a standard WP page and also on the CPT associated with your documentation pages.
Most configuration options are added via the site settings panel (PageLines > Settings > Resources). Don’t forget to save your permalinks if you change the base url for the CPTs.
Finally, note that chapters are controlled via CPT ‘terms’. Create a new category and it should show up as a chapter in the section.