change(shortcodes/info_notice): add summary parameter

templates/shortcodes/info_notice.md

@@ -1,3 +1,7 @@
 {% set class = class | default(value='') %}
 {% if float %}{% set class = class ~ "float " %}{% endif %}
+{% if summary %}
+<details class='notice info {{ class }}'><summary>{{ summary | markdown(inline=true) }}</summary>{{ body | markdown }}</details>
+{% else %}
 <div class='notice info {{ class }}'>{{ body | markdown }}</div>
+{% endif %}