Should this say `gem install coderay` rather than `gem install syntax`?

Also, I'm wondering about the wording `gem install x` -- that sounds to me like an instruction to run `gem install x` in your shell, but these days most project use bundler, and with bundler's typical sandboxing, it won't let you load a gem that you've installed but not listed in the `Gemfile`.  Maybe this should say `Install the x gem` instead of `gem install x` so as to leave the "how" of installing the gem as an exercise entirely up to the reader?