No hard coded phone number in template

apps/family/templates/family/manage.html

@@ -190,7 +190,12 @@ SPDX-License-Identifier: GPL-3.0-or-later
             <li>The name of the challenge</li>
             <li>A photo or video as proof</li>
             </ul>
-	    <p><strong>Send it via WhatsApp to:<a href="tel:+33630211244"></strong> +33 6 30 21 12 44</a></p>
+	    <p>
+            <strong>Send it via WhatsApp to:
+            {% for num in phone_numbers %}
+                <a href="https://wa.me/{{ num }}" target="_blank">{{ num }}</a>{% if not forloop.last %}, {% endif %}
+            {% endfor %}
+        </p>
         </div>
         <div class="modal-footer">
             <button type="button" class="btn btn-primary" data-dismiss="modal">{% trans "OK" %}</button>