more calendar stuff

_includes/event.njk

@@ -0,0 +1,8 @@
+<h3>{{ event.data.title }}</h3>
+<p>
+  <time datetime="{{ event.data.date | htmlDateString }}">{{ event.data.date | readableDateTime }}</time>
+</p>
+<p>{{ event.content | safe }}</p>
+{% if event.data.ics %}
+  <p><a href="{{ event.data.ics }}">Add {{ event.data.title }} to your calendar</a></p>
+{% endif %}