Added Telstra SMS test function to settings page

busManager/coord/templates/admin/settings_index.html

@@ -2,6 +2,7 @@
 
 {% block content %}
     <div><a href={% url 'settings:nightly_task' %}>Run nightly task</a></div>
+    <div><a href={% url 'settings:sms_test' %}>Send SMS test message</a></div>
     <div><a href={% url 'settings:export' %}>Export</a></div>
     <div>
         <div class="flex-container">