Add back repos to GitHub page

This adds back the repos data that was removed from the rewrite.
Reorganize repos on GitHub page, add CLA info
Merge pull request #51 from ericf/github

Add back repos to GitHub page
Rename project to: FormatJS
Make sure nav menu fits on smaller screens with new brand name
Merge pull request #52 from ericf/rename-formatjs

Rename project to: FormatJS