site/_includes/pagination.html
<div class="pagination clearfix mb1 mt4">
<div class="left">
{% if paginator.previous_page %}
{% if paginator.page == 2 %}
<a class="pagination-item" href="{{ site.baseurl }}/">Newer</a>
{% else %}
<a class="pagination-item" href="{{ site.baseurl }}/page{{paginator.previous_page}}/">Newer</a>
{% endif %}
{% else %}
<span class="pagination-item disabled">Newer</span>
{% endif %}
</div>
<div class="right">
{% if paginator.next_page %}
<a class="pagination-item" href="{{ site.baseurl }}/page{{paginator.next_page}}/">Older</a>
{% else %}
<span class="pagination-item disabled">Older</span>
{% endif %}
</div>
</div>