template/includes/fragment-notes.html

{% assign notes = site.data.pages[page.path].notes %}
{% if notes != null %}
<h3>Notes:</h3>
{% if site.data.pages[page.path].notes-type == 'xml' %}
{% include {{notes}} type=include.type id=include.id %}
{% else %}
{% capture note-content %}
{% include {{notes}} type=include.type id=include.id %}
{% endcapture %}
<div style="display:inline-block" markdown="1">
{{ note-content | markdownify }}
</div>
{% endif %}
{% endif %}