budparr

{% comment %}
items is a collection, though I think it coule be any content type
{% endcomment %}

{% comment %} Create the group. {% endcomment %}
{% assign items_grouped = site.items | group_by: 'category' | sort: 'name' | reverse %}
{% comment %} 
  The above returns, for example, which is why we sort by 'name'
  {"name"=>"category1_value", "items"=>[#, #, #, #, #]}{"name"=>"category2_value", "items"=>[#, #, #, #]}
{% endcomment %}