Docs RDoc
RVM can help you work with rdoc and yarddoc (NIY) for the core ruby libraries.
First select a RVM ruby.
$ rvm use 1.8.7
Next generate the core ruby documentation.
$ rvm docs generate
And finally open the core ruby documentation in your local web browser. Note that for this to work either `open` or `xdg-open` must be found in your system.
$ rvm docs open
