Missing documentation on Hello World
I'm just getting started in trying Ratchet for the first time.  On the page: http://socketo.me/docs/install  part of the instructions are:
"Once you have composer.phar on your system (for this documentation, we're going to assume it's in your home directory) create a file called composer.json in your project folder. Inside that file copy and paste the JSON from the top of this page."

As far as I can tell there is no JSON at the top of the page to copy and paste.
