index.html

    {% if links %}
        {% regroup links by links.linkgroup as link_list %}
        {% for l in link_list %}
            <li>
                <h4>{{ l.grouper }}</h4>
                <ul>
                    {% for i in l.linkgroup  %}
                        <li>{{ i.title }}</li>
                    {% endfor %}
                </ul>
            </li>
        {% endfor %}
    {% else %}
        <p>We got no links!</p>
    {% endif %}

views.py

from django.shortcuts import render
from links.models import Link


def index(request):
    links = Link.objects.all().order_by("-linkgroup")

    return render(request, 'index.html', {'links': links})