Getting started/ports:
- As a trial, redesigned the site layout
- All install/control/path info is now contained in section "The basics"
- Duplicate information has not been removed - awaiting feedback
General changes:
- Lightened up the tone in some sections
- Made headings more descriptive
- Added reference to .ini keys on Settings pages
- Reformatted Launcher page
- Split adding/playing games into two pages
- Added favicon
- Changed formatting of inline code
- moves android/ios back to getting started section
- moves other platforms further down sidebar navigation
- renames advanced options to advanced topics
- moves cloud/lan pages into using scummvm section
- changes index page to be only a landing page; some info moved out
- updates refs/links for new structure
