{% if categories_list.first == null %}

{% for category in categories_list %} 
    <li>
        <a href="{{ site.paths.categories | relative_url }}#{{ category | replace:' ','-' }}" title="{{ category | join: "/" }}">
        {{ category | join: "/" }} <span>{{ site.categories[category].size }}</span></a>
    </li>
{% endfor %}

{% else %}

{% for category in categories_list %} 
    <li>
        <a href="{{ site.paths.categories | relative_url }}#{{ category[0] | replace:' ','-' }}" title="{{ category[0] | join: "/" }}">
        {{ category[0] | join: "/" }} <span>{{ category[1].size }}</span></a>
    </li>
{% endfor %}

{% endif %}

{% assign categories_list = nil %}