twbs--bootstrap/_includes/footer.html

<footer class="bd-footer text-muted">
  <div class="container">
    <ul class="bd-footer-links">
      <li><a href="{{ site.repo }}">GitHub</a></li>
      <li><a href="https://twitter.com/getbootstrap">Twitter</a></li>
      <li><a href="{{ site.baseurl }}/examples/">Examples</a></li>
      <li><a href="{{ site.baseurl }}/about/history/">About</a></li>
    </ul>
    <p>Designed and built with all the love in the world by <a href="https://twitter.com/mdo" target="_blank">@mdo</a> and <a href="https://twitter.com/fat" target="_blank">@fat</a>. Maintained by the <a href="https://github.com/orgs/twbs/people">core team</a> with the help of <a href="https://github.com/twbs/bootstrap/graphs/contributors">our contributors</a>.</p>
    <p>Currently v{{ site.current_version }}. Code licensed <a rel="license" href="https://github.com/twbs/bootstrap/blob/master/LICENSE" target="_blank">MIT</a>, docs <a rel="license" href="https://creativecommons.org/licenses/by/3.0/" target="_blank">CC BY 3.0</a>.</p>
  </div>
</footer>