docs/_includes/paginate-doc.html

{% assign docs = site.data.navigation_docs | map: 'docs' | join: ',' | split: ',' %}

{% for document in docs %}
  {% assign document_url = document | prepend:"/docs/" | append:"/" %}
  {% if document_url == page.url %}
    <ul class="uk-pagination uk-margin-top">
          {% if forloop.first %}

          {% else %}
            {% assign previous = forloop.index0 | minus: 1 %}
            {% assign previous_page = docs[previous] | prepend:"/docs/" | append:"/" %}
            <li><a class="hvr-back" href="{{ previous_page }}">&larr; Previous</a></li>
          {% endif %}
          {% if forloop.last %}

          {% else %}
            {% assign next = forloop.index0 | plus: 1 %}
            {% assign next_page = docs[next] | prepend:"/docs/" | append:"/" %}
            <li class="uk-margin-auto-left"><a class="hvr-forward" href="{{ next_page }}">Next &rarr;</a></li>
          {% endif %}
    </ul>
    {% break %}
  {% endif %}
{% endfor %}