828103c Update the information about Fedora Media Writer, FIXES #7.

Authored and Committed by lruzicka 4 years ago
    Update the information about Fedora Media Writer, FIXES #7.
    
    * Mention that FMW is the only supported way to create USB media.
    * Update Button descriptions and Strings to comply with the latest version
      FMW.
    * Redesign the chapter - create an installation procedure for different
      systems and leave only one creating procedure based on Fedora installation.
    * Rewrite some sentences to improve the text (IMHO).