Revert "Removed comment"

This reverts commit 11e1705.

Author: michaelNetCompany

app/views/address-update/landing.html

@@ -10,7 +10,7 @@
 
 
 {% block content %}
-
+<!-- test update -->
 <div class="nhsuk-grid-row">
   <div class="nhsuk-grid-column-two-thirds nhsuk-u-margin-bottom-4">