lookingglass/hyperglass/render/templates/credit.html

<div class="content is-small has-text-centered" id="credit">
  <p>Powered by <a href="https://github.com/checktheroads/hyperglass">hyperglass</a>. Source code licensed <a href="https://github.com/checktheroads/hyperglass/blob/master/LICENSE">BSD 3-Clause Clear.</a></p>
</div>