diff --git a/core/MAINTAINERS.txt b/core/MAINTAINERS.txt
index 2d797c9..8d21fbe 100644
--- a/core/MAINTAINERS.txt
+++ b/core/MAINTAINERS.txt
@@ -330,6 +330,9 @@ RDF module
 - Stéphane Corlosquet 'scor' http://drupal.org/user/52142
 - Lin Clark 'linclark' http://drupal.org/user/396253
 
+Responsive preview module
+- Jesse Renée Beach 'jessebeach' http://drupal.org/user/748566
+
 REST module
 - Klaus Purer 'klausi' http://drupal.org/user/262198
 - Larry Garfield 'Crell' http://drupal.org/user/26398
diff --git a/core/modules/responsive_preview/responsive_preview.module b/core/modules/responsive_preview/responsive_preview.module
index c0a96a5..2a1aade 100644
--- a/core/modules/responsive_preview/responsive_preview.module
+++ b/core/modules/responsive_preview/responsive_preview.module
@@ -14,9 +14,10 @@ function responsive_preview_help($path, $arg) {
     case 'admin/help#responsive_preview':
       $output = '<h3>' . t('About') . '</h3>';
       $output .= '<p>' . t('The Responsive Preview module provides a quick way to preview a page on your site within the dimensions of many popular device and screen sizes.') . '</p>';
+      $output .= '<p>' . t('The preview does not purport to emulate the page rendering capabilities of an indicated device. It provides an approximate page preview rendered by your current browser, based on reported device sizes and their screen resolutions.') . '</p>';
       $output .= '<h3>' . t('Uses') . '</h3>';
       $output .= '<p>' . t('To launch a preview, first click the toolbar tab with the small device icon. The tab has the title "@title". A list of devices will appear. Selecting a device name will launch a preview of the current page within the dimensions of that device.', array('@title' => t('Preview page layout'))) . '</p>';
-      $output .= '<p>' . t('To close the preview, click the close button signified visually by an x.') . '</p>';
+      $output .= '<p>' . t('To close the preview, click the close button signified visually by an x or press the ESC key.') . '</p>';
       return $output;
     case 'admin/config/content/responsive-preview':
       $output = '<p>' . t('Configure the set and order of available devices on this page for responsive site preview. The list of devices is shown in a dropdown accessible from the toolbar tab with a small device icon.') . '</p>';