{% comment %} This include creates a modal pop up with data export options. The logic of which formats appear is based on config-nav stubs: if subject.html, map.html, location.html, or timeline.html are present, corresponding data formats will be available for download. {%- endcomment -%} {%- assign stubs = site.data.config-nav | map: 'stub' | join: ';' -%}