Create a new landing page for the Jenkins user documentation site with introductory material about using Jenkins and a brief overview of the site.
The name of this page would be 'Jenkins User Documentation' (for reasons explained in this discussion), whose link in the TOC ideally would sit above the Guided Tour heading.
This page should cover introductory material about Jenkins, such as:
- A description of what Jenkins is (which currently exists in brief form at the top of the current 'Index' page) and
- An overview of content in (and with links to) the remainder of the Jenkins user documentation (which doesn't exist yet).
In parallel to this, update the current 'Index' page (whose description of what Jenkins is would have been moved to the new 'Jenkins User Documentation' landing page) and begin the page with the 'Guided Tour' content - whose title should be renamed 'Getting Started' or 'Getting Started with the Guided Tour'.