- added missing letsencrypt template part

interface/web/sites/templates/web_vhost_domain_edit.htm

@@ -209,6 +209,12 @@
                 <div class="col-sm-9">
                     {tmpl_var name='ssl'}
                 </div>
+            </div>
+            <div class="form-group">
+                <label class="col-sm-3 control-label">{tmpl_var name='ssl_letsencrypt_txt'}</label>
+                <div class="col-sm-9">
+                    {tmpl_var name='ssl_letsencrypt'}
+                </div>
             </div></tmpl_if>
             <div class="form-group">
                 <label for="php" class="col-sm-3 control-label">{tmpl_var name='php_txt'}</label>