Merge pull request #1451 from alphagov/update-content-data-info

Be clearer about Content Data feedback

app/views/content_data_feedback/_request_details.html.erb

@@ -1,7 +1,7 @@
 <p class="alert alert-info">
-  Content Data is in private beta. With this form you can tell us
-  about your experience using the new data tool, so we can make it
-  better.
+  Content Data is in beta. It is currently operating in a minimal maintenance mode only,
+  so no further product developments are planned. Our capacity for addressing any issues
+  that arise is also limited, so only those with a significant impact can be prioritised.
 </p>
 <div id="feedback-type">
   <div class="form-group">