network_inventory/users/templates/groups/group_list.html

{% extends "core/base.html" %}
{% load render_table from django_tables2 %}
{% block section_title %}{{ customer }} Groups{% endblock %}
{% block content %}
<div class="table-responsive">
    {% render_table ad_groups %}
</div>

<div class="table-responsive">
    {% render_table mail_groups %}
</div>
{% endblock %}