[release-notes/gnome-3-24] add a screenshot for gtk4

[Allan Day <allanday src gnome org>]

commit 5287176c714c280d4476f00a2820e77f690a62e2
Author: Allan Day <allanpday gmail com>
Date:   Thu Mar 16 13:04:16 2017 +0000

    add a screenshot for gtk4

 help/C/developers.page      |    2 +-
 help/C/figures/fishbowl.png |  Bin 0 -> 441869 bytes
 help/Makefile.am            |    1 +
 3 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/help/C/developers.page b/help/C/developers.page
index 3c8fbf5..150716f 100644
--- a/help/C/developers.page
+++ b/help/C/developers.page
@@ -52,7 +52,7 @@
 
   <section id="GTK+4">
     <title>Progress Towards GTK+ 4</title>
-    <media type="image" src="figures/placeholder.png"/>
+    <media type="image" src="figures/fishbowl.png"/>
     <p>GTK+ development has been focused on the next major GTK+ release, GTK+ 4. This development branch is 
not currently ready for use. However, new features have started to land, including a recorder feature in GTK+ 
Inspector and support for the CSS filter specification. Other changes include cleanup of deprecated APIs and 
the creation of a new Vulkan renderer.</p>
     <p>The stable 3.22 branch has continued to receive bug fixes this development cycle. These can be found 
in the GTK+ 3.22.10 release, which forms part of GNOME 3.24.</p>
   </section>
diff --git a/help/C/figures/fishbowl.png b/help/C/figures/fishbowl.png
new file mode 100644
index 0000000..968465f
Binary files /dev/null and b/help/C/figures/fishbowl.png differ
diff --git a/help/Makefile.am b/help/Makefile.am
index 6536082..df75b58 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -11,6 +11,7 @@ HELP_FILES = \
 HELP_MEDIA = \
  figures/adwaita-324-updates.png \
  figures/builder.png \
+ figures/fishbowl.png \
  figures/flatpak.png \
  figures/games.png \
  figures/night-light.png \