Prefixed background-size
Adds mobile scroll

... which I'm sure I'll remove at some point in the very near future.
Optimized images
Retina social icons
Merge branch 'master' of https://github.com/goodguyry/goodguyry.github.io

* 'master' of https://github.com/goodguyry/goodguyry.github.io:
  Updates README.md
  Create README.md