<ul>
{% for tag in site.tags %} <li> <h3 id="{{ tag[0] }}">{{ tag[0] }}</h3> {% include post_list.html tag=tag %} </li>
{% endfor %}
<li> <h3 id="Untagged">Untagged</h3> {% include post_list.html untagged=true %} </li>
</ul>
<ul>
{% for tag in site.tags %} <li> <h3 id="{{ tag[0] }}">{{ tag[0] }}</h3> {% include post_list.html tag=tag %} </li>
{% endfor %}
<li> <h3 id="Untagged">Untagged</h3> {% include post_list.html untagged=true %} </li>
</ul>