title: Commenting out code blocks in Atom
body: <p>I have been moving from Webstorm and RubyMine to Atom and I really miss a feature from the Jetbrains editors where you select a code block and press <kbd>CMD</kbd> + <kbd>-</kbd> and it adds language specific comment character(s) to the beginning of each line. (<code>#</code> for ruby. <code>//</code> for js, <code>/*</code> for css etc.).</p>
  
  <p>Is there a built in shortcut for Atom or a package which provides this feature?</p>