Merge pull request #3071 from alphagov/update-change-h1

Update 'Change' heading

app/templates/views/service-settings/sms-sender/edit.html

@@ -7,13 +7,13 @@
 {% from "components/form.html" import form_wrapper %}
 
 {% block service_page_title %}
-  Edit text message sender
+  Change text message sender
 {% endblock %}
 
 {% block maincolumn_content %}
 
   {{ page_header(
-    'Edit text message sender',
+    'Change text message sender',
     back_link=None if request.args.get('from_template') else url_for('.service_sms_senders', service_id=current_service.id)
   ) }}
   {% call form_wrapper() %}