For Windows, you have to download and install [git](http://git-scm.com/downloads) and [Node.js](http://nodejs.org/download/).
-Mac OS users should install [Homebrew](http://mxcl.github.com/homebrew/). Once Homebrew is installed, run `brew install git` to install git,
+Mac OS users should install [Homebrew](http://brew.sh/). Once Homebrew is installed, run `brew install git` to install git,
and `brew install node` to install Node.js.
Linux/BSD users should use their appropriate package managers to install git and Node.js, or build from source