adjust email templates

app/views/submitter_mailer/documents_copy_email.html.erb

@@ -0,0 +1,13 @@
+<p>Hi there,</p>
+<p>Please check the copy of your "<%= @submitter.submission.template.name %>" submission in the email attachments.</p>
+<p>Alternatively, you can download the copy using:</p>
+<% @documents.each do |document| %>
+  <ul>
+    <li>
+      <%= link_to document.filename.to_s, rails_blob_url(document) %>
+    </li>
+  </ul>
+<% end %>
+<p>
+  Thanks,<br><%= @submitter.submission.template.account.name %>
+</p>