Format and edit readme.

README.md

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 https://www.youtube.com/watch?v=db-7J5OaSag
 
-RiftSketch is an HTML5 live-coding environment for the Oculus Rift.
+RiftSketch is an HTML5 live-coding environment for Virtual Reality.
 
-It lets you code a "sketch" in JavaScript, using [ThreeJS](http://threejs.org/), and the world around you changes immediately as you code.
+It lets you code a "sketch" in JavaScript, using
+[ThreeJS](http://threejs.org/), and the world around you changes immediately
+as you code.
 
-It's quite a niche application since you need to have an Oculus Rift, be a JavaScript programmer *and* be sufficiently familiar with Three.js but if you meet that criteria it's a surprisingly fun and engaging experience!
+It's quite a niche application since you need to have an Oculus Rift, be a
+JavaScript programmer *and* be sufficiently familiar with Three.js but if you
+meet that criteria it's a surprisingly fun and engaging experience!
 
 ## Setup
 
-If you happen to have a Rift and you want to try it out yourself, download a developer bulid of Firefox or Chrome that includes the WebVR APIs from http://mozvr.com/downloads.html or https://drive.google.com/folderview?id=0BzudLt22BqGRbW9WTHMtOWMzNjQ&usp=sharing#list and visit http://brian.peiris.io/RiftSketch/ with your Rift hooked up.
+If you happen to have a Rift and you want to try it out yourself, download a
+developer bulid of Firefox or Chrome that includes the WebVR APIs from
+[MozVR](http://mozvr.com/downloads) or
+[https://drive.google.com/folderview?id=0BzudLt22BqGRbW9WTHMtOWMzNjQ&usp=sharing#list](the Chrome dev build share)
+and visit http://brian.peiris.io/RiftSketch/ with your Rift hooked up.