Improve description of Ruby in README
Use improved description as suggested by Olivier Lacan (@olivierlacan (Olivier Lacan)), see https://github.com/ruby/www.ruby-lang.org/pull/1888.
Improve description of Ruby in README
Use improved description as suggested by Olivier Lacan (@olivierlacan (Olivier Lacan)),
see https://github.com/ruby/www.ruby-lang.org/pull/1888.