Update announcment bar

overrides/main.html

@@ -18,9 +18,13 @@
   <span class="twemoji">
     {% include ".icons/fontawesome/solid/circle-exclamation.svg" %}
   </span>
-  While Open 3P is <strong>free and open</strong>, under the
+  Open 3P is <strong>free and open</strong>, under the
   <a rel="me" href="{{ '10_Licence/10_01_Licence' | url }}">
     <strong>Apache License, Version 2.0</strong>
   </a>
-  you are required to inform us if you are using it. Provide your contact details to let us know and to stay informed of updates to the standard.
+  . To be kept informed of updates, events and news then signup to our 
+  <a target="_blank" href="{{ 'http://eepurl.com/iB-Qhk' | url}}">
+    <strong>mailing list</strong>
+  </a>
+  .
 {% endblock %}