  {% unless site.github_link == nil %}
    <div class="border-top mb-0 pt-4 mt-5 text-gray">
      <h5>This page is open source</h5>
      <p class="text-small">
        <a href="{{ site.github.repository_url }}/edit/{{ site.github_pages_branch }}/{{ page.path }}">Help improve its content by opening a Pull Request on GitHub</a>.
      </p>
    </div>
  {% endunless %}

  {% unless site.github_link == nil or site.github_link == false %}
    <div class="border-top mb-0 pt-4 mt-5 text-gray">
      <h5>This page is open source</h5>
      <p class="text-small">
        <a href="{{ site.github.repository_url }}/edit/{{ site.github_pages_branch }}/{{ page.path }}">Help improve its content by opening a Pull Request on GitHub</a>.
      </p>
    </div>
  {% endunless %}

Build in show/hide logic to include false
Build in show/hide logic to include false
