fix anchor tag in assignments

WidgetFEKK/Assignments/templates/Assignments/assignment_list.html

@@ -17,7 +17,7 @@
                     <div class = "block">
                          <h2> {{a.course}} </h2>
                          <li>
-                              <a href="{% url 'Assignments:assignment-detail' a.pk%}"> {{a.name}} </a>
+                              <a href="/assignment/{{ a.pk }}/details"> {{a.name}} </a>
                          </li>
                     </div>
                {%endfor%}