Add Meta Tags for Social Media

[loljoho]

• Facebook
• Twitter
• Google Plus?

<!-- Facebook Meta Tags
–––––––––––––––––––––––––––––––––––––––––––––––––– -->
<meta proprety="og:url"         content="http://poppy.gq">
<meta property="og:title"       content="poppyGP">
<meta property="og:description" content="Bringing you the best in massive first-lap shunts since 2012!">
<meta property="og:site_name"   content="Poppy Grand Prix">
<meta property="og:image"       content="./assets/social/facebook.png">
<meta property="fb:app_id"      content="1499785620338430">