firezone/docs/_includes/footer_custom.html

{%- if site.footer_content -%}
  <div class="text-small mb-0">
    <a href="/">Company</a> | <a href="https://github.com/firezone/firezone">Github</a> | <a href="https://twitter.com/firezonevpn">Twitter</a>
  </div>  
{%- endif -%}