diff --git a/core/modules/responsive_preview/config/responsive_preview.devices.yml b/core/modules/responsive_preview/config/responsive_preview.devices.yml
index 49e1305..c8b20c4 100644
--- a/core/modules/responsive_preview/config/responsive_preview.devices.yml
+++ b/core/modules/responsive_preview/config/responsive_preview.devices.yml
@@ -2,6 +2,9 @@
 # - http://en.wikipedia.org/wiki/List_of_displays_by_pixel_density
 # - http://www.w3.org/blog/CSS/2012/06/14/unprefix-webkit-device-pixel-ratio/
 # - http://pieroxy.net/blog/2012/10/18/media_features_of_the_most_common_devices.html
+#
+# The device listing and specifications will be updated periodically through
+# minor releases of Drupal.
 
 devices:
   iphone:
diff --git a/core/modules/responsive_preview/responsive_preview.info b/core/modules/responsive_preview/responsive_preview.info
index 06e86eb..1930a4d 100644
--- a/core/modules/responsive_preview/responsive_preview.info
+++ b/core/modules/responsive_preview/responsive_preview.info
@@ -1,5 +1,5 @@
 name = Responsive Preview
-description = Provides a component that previews the a page in various device dimensions.
+description = Provides a component that previews a page in various device dimensions.
 package = Core
 version = VERSION
 core = 8.x