categories.md

layout	permalink	title
default	/categories	Categories

{% assign sorted_categories = site.categories | sort %} {% for category in sorted_categories %}

{% capture category_name %}{{ category | first }}{% endcapture %}

{{ category_name }}

    <ul>
      {% for post in site.categories[category_name] %}
        <li><a class="archive-link" href="{{ site.baseurl }}{{ post.url }}">{{post.title}}</a></li>
      {% endfor %}
    </ul>
</div>

{% endfor %}