Update site in accordance to guidance from Week 4 HW

* Include responsive bootstrap styles and incorporate them
* Include placeholders for images and video
* Add sections describing:
  - number of backers
  - amount raised (out of goal)
  - number of days remaining
  - "thermometer" visualizing percentage of goal raised
* Add social media (Twitter/Facebook) buttons
* Add Lorem Ipsume for marketing copy
* Add FAQ accordion
* Add footer describing license (CC By-SA)