Resolve "Add support for group notes"

Closes #68 (closed)

aleksis/apps/alsijil/templates/alsijil/class_register/lesson.html

@@ -86,6 +86,13 @@
                       </tr>
                     {% endif %}
 
+                    {% if prev_doc.group_note %}
+                      <tr>
+                        <th class="collection-item">{% trans "Group notes for this lesson:" %}</th>
+                        <td>{{ prev_doc.group_note }}</td>
+                      </tr>
+                    {% endif %}
+
                     {% if absences %}
                       <tr>
                         <th>{% trans "Absent persons:" %}</th>