metadata: Add author line, revision line, attributes, and license header
    
    This commit refreshes various document metadata for future publishing.
    It includes an author line citing the Fedora Council and Fedora
    Community and points to the council-discuss mailing list as an email. It
    also adds a table of contents and a licenser header to the file.
    
    (CC BY is the default license for unlicensed content for Fedora
    contributors, but this is an explicit declaration of license in the
    document.)
    
    Signed-off-by: Justin W. Flory <git@jwf.io>