category_list.html aside for Octopress

category_list.html

<section class="panel panel-default">
  <div class="panel-heading">
    <h3 class="panel-title">Categories</h3>
  </div>
  <div class="list-group">
    {% for category in site.categories %}
    {% capture category_url %}{{ site.category_dir }}/{{ category | first | slugize | downcase | replace:' ','-' | append:'/index.html'}}{% endcapture %}
    <a class="list-group-item {% if category_url == page.url %}active{% endif %}" href="{{ root_url | append:'/' | append:category_url }}">
        <span class="badge">{{ category | last | size }}</span>
        {{ category | first }}
      </a>
    {% endfor %}
  </div>
</section>