networks: add link to main page for router config form

Signed-off-by: Nektarios Katakis <iam@nektarioskatakis.xyz>
Reviewed-by: James Valleroy <jvalleroy@mailbox.org>

plinth/modules/networks/templates/connections_list.html

@@ -55,6 +55,29 @@
 {% endblock %}
 
 {% block configuration %}
+  <h3>{% trans "Freedombox Internet Connectivity" %}</h3>
+  <p>
+  {% blocktrans trimmed %}
+      The following best describes how your Freedombox is connected in your
+      network. This information is used only to suggest you necessary configuration
+      actions.
+  {% endblocktrans %}
+  </p>
+
+  <p>
+  {% blocktrans trimmed %}
+      Your Freedombox gets its internet from your Router via WiFi or Ethernet
+      cable. This is a typical home setup.
+  {% endblocktrans %}
+  </p>
+
+  <div class="btn-toolbar">
+    <a href="{% url 'networks:router_setup' %}" class="btn btn-primary"
+       role="button" title="{% trans 'Update...' %}">
+      <span class="fa" aria-hidden="true"></span>
+      {% trans 'Update...' %}
+    </a>
+  </div>
 
   <h3>{% trans "Connections" %}</h3>