{%- comment -%}
  The foot of a chapter. Replaces the theme's footer, which credited itself.
  A section page has no file of its own: its label and description are in
  _config.yml, so that is what the link opens.
{%- endcomment -%}
{%- assign edit_path = page.path -%}
{%- if page.section_key -%}{%- assign edit_path = "_config.yml" -%}{%- endif -%}
<footer class="page-footer">
  <p class="page-footer-line">
    <a href="https://github.com/jorgemanrubia/omacharts/blob/main/site/{{ edit_path }}">Edit this page on GitHub</a>
  </p>
</footer>