message: Restore Star on GitHub button
diff: @@ -32,6 +32,7 @@ class HomeSplash extends React.Component {
  <div className="section promoSection">
  {siteConfig.homepagePromos.map(this.makePromoElements, this)}
  </div>
  + <div className="githubButton">{siteConfig.githubButton}</div>
  </div>
  </div>
  </div>
  