gilles-acezat/user/themes/gilles_acezat/templates/partials/blog/category.html.twig

{% if page.taxonomy.category %}
    {% for category in page.taxonomy.category %}
    <a href="{{ blog.url|rtrim('/') }}/category{{ config.system.param_sep }}{{ category }}" data-filter="{{ category }}" >{{ category }}</a>
    {% endfor %}
{% endif %}