Update Generated Test Suites section in README with gem documentation
Update Generated Test Suites section in README with gem documentation

NeimadTL/ruby,Insti/exercism-ruby,Insti/exercism-ruby,NeimadTL/ruby,exercism/xruby,Insti/exercism-ruby,exercism/xruby,Insti/xruby,Insti/xruby,NeimadTL/ruby