message: add google analytics and preview image meta
diff: @@ -26,11 +26,20 @@ html(lang="en")
  meta(name='viewport', content='width=device-width, initial-scale=1')
  meta(property='og:title', content=meta.title)
  meta(property='og:description', content=meta.description)
  + meta(property='og:image', content='https://s3.eu-central-1.amazonaws.com/logaretm/vee-validate.svg')
  meta(name='description', content=meta.description)
  title= meta.title
  body
  include _mixins.pug
  + script.
  + (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
  + (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
  + m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
  + })(window,document,'script','https://www.google-analytics.com/analytics.js','ga');
  +
  + ga('create', 'UA-100131478-1', 'auto');
  + ga('send', 'pageview');
  svg(style='display: none;')
  symbol#github(viewbox='0 0 16 16')
  