[release-notes/gnome-3-18] add image for automatic screen brightness

[Allan Day <allanday src gnome org>]

commit 6c3a5a591f3150ca5ff1748aac8a8924bdaf4435
Author: Allan Day <allanpday gmail com>
Date:   Wed Sep 16 19:11:59 2015 +0100

    add image for automatic screen brightness

 help/C/figures/screen-brightness.png |  Bin 0 -> 17839 bytes
 help/C/index.page                    |    4 ++--
 help/Makefile.am                     |    1 +
 3 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/help/C/figures/screen-brightness.png b/help/C/figures/screen-brightness.png
new file mode 100644
index 0000000..a11c946
Binary files /dev/null and b/help/C/figures/screen-brightness.png differ
diff --git a/help/C/index.page b/help/C/index.page
index fa0c284..9b74576 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -70,9 +70,9 @@
     <p>The initial feature list is simple and straightforward, including month and year views, search, the 
ability to add calendars from files and remote calendars from URLs, online accounts integration, and event 
viewing and editing.</p>
   </section>
 
-  <section id="automatic-screen-brightness">
+  <section id="screen-brightness">
     <title>Automatic Screen Brightness</title>
-    <media type="image" src="figures/placeholder.png"/>
+    <media type="image" src="figures/screen-brightness.png"/>
     <p>If your computer has an integrated light sensor, GNOME 3 is now able to use it to automatically 
control screen brightness. Not only does this ensure that the screen is always easy to see, but it also helps 
to reduce battery consumption. An option is provided to disable automatic screen brightness in the 
<gui>Power</gui> settings, should you want to turn it off.</p>
   </section>
 
diff --git a/help/Makefile.am b/help/Makefile.am
index 9e62bf9..970ffe6 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -18,6 +18,7 @@ HELP_MEDIA = \
  figures/hig.png \
  figures/placeholder.png \
  figures/polari.png \
+ figures/screen-brightness.png \
  figures/todo.png \
  figures/touchpad-gestures.png \
  figures/wayland.png