* Refactored a User Guide style documentation from the previous Welcome
documentation. The Welcome documentation links to the User Guide, the
biggest difference is that there is now a separate contents page.
* Improvements to the text.
* Added Tracker-Add-ons page.
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@28211 a95241bf-73f2-0310-859d-f6bbb57e9c96
