adding require.js
Merge pull request #3 from tylermorgan86/master

adding require.js
Day Six chapters
https://app.asana.com/0/11169835259592/12152479471888
Merge branch 'master' of github.com:codefellows/Full-Stack-JavaScript-Engineering
Adding readings to day six
https://app.asana.com/0/11169835259592/1215247947188