category.html

<section id="posts" class="posts-collapse" hidden>
  <div class="collection-title">
    <{% if site.seo %}h2{% else %}h1{% endif %}>
    {{ page.title }}
    <small>{{  __.title.category  }}</small>
    </{% if site.seo %}h2{% else %}h1{% endif %}>
  </div>

  {% assign paginate = site.category.paginate | default: site.paginate  %}
  {% assign paginate_path = site.category.paginate_path | default: site.paginate_path  %}

  {% for cat_posts in site.categories %}
    {% assign cat = cat_posts[0] | url_encode | replace: '+', '%20' %}
    {% assign posts = cat_posts[1] %}

    {% for post in posts %}
      {% if paginate > 0 %}
        {% assign page_num = forloop.index0 | divided_by: paginate | plus: 1 %}
        {% assign route = '/' | append: cat %}
        {% if page_num != 1 %}
          {% assign route = route | append: paginate_path | replace: ':num', page_num %}
        {% endif %}
      {% endif %}

      {% include _macro/post-collapse.html %}
    {% endfor %}
  {% endfor %}
</section>

<nav class="pagination"></nav>