Fix sitemap tag :poop:
Updated careers link on front page.
Added post about joining the engineering team.
Updated date of post.
Fixed some typos
Merging from development branch
Merge pull request #7 from young-steveo/master

Fixing some typos on the careers page.
Merge branch 'develop'
Merge branch 'develop'
Improved microdata markup on careers page
Merge branch 'master' into develop