Update readme
Update readme

jdsayle/xruby,darrencauthon/xruby,alexbrinkman/xruby,Insti/xruby,NobbZ/xruby,exercism/xruby,Insti/xruby,remcopeereboom/xruby,kotp/xruby,NeimadTL/ruby,rashmiagar/exercism,Insti/exercism-ruby,exercism/xruby,alexbrinkman/xruby,tommyschaefer/xruby,wobh/xruby,Calvyn82/xruby,mamenama/xruby,Calvyn82/word_count,NeimadTL/ruby,kickinbahk/xruby,mamenama/xruby,samilokan/xruby,gchan/xruby,kickinbahk/xruby,dalexj/xruby,dalexj/xruby,wobh/xruby,remcopeereboom/xruby,tommyschaefer/xruby,kotp/xruby,gchan/xruby,jdsayle/xruby,NobbZ/xruby,Calvyn82/xruby,rashmiagar/exercism,Calvyn82/word_count,samilokan/xruby,NeimadTL/ruby,Insti/exercism-ruby,darrencauthon/xruby,Insti/exercism-ruby