message: Fix "Add your company" button
diff: @@ -32,7 +32,7 @@ class UserShowcase extends React.Component {
  </div>
  <p>Is your company using Jest?
  </p>
  - <a className="button">Add your company</a>
  + <a href="https://github.com/facebook/jest/edit/master/website/siteConfig.js" className="button">Add your company</a>
  </div>
  </Container>
  </div>
  