typos in about page fixed

changes made as per:

<chloe> 1) About Page
<chloe> First paragraph ==> then allowing you map your own path to a rewarding job tailored to your skills and interests. SHOUL BE then allowing you to map your own path to a rewarding job tailored to your skills and interests.
chloe> 2) Discover is a tool prototype that connects http://openbadges.org/ for your interests, education, experiences and personality traits SHOULD BE Discover is a tool prototype that connects http://openbadges.org/ to your interests, education, experiences and personality traits