[release-notes/gnome-3-20] Add screenshot for Polari

[Andreas Nilsson <andreasn src gnome org>]

commit c5632658009abcf410d00af5c5f80638f46f549c
Author: Andreas Nilsson <anilsson redhat com>
Date:   Tue Mar 22 17:53:19 2016 +0100

    Add screenshot for Polari

 help/C/figures/polari.png |  Bin 0 -> 255001 bytes
 help/C/index.page         |    2 +-
 help/Makefile.am          |    3 ++-
 3 files changed, 3 insertions(+), 2 deletions(-)
---
diff --git a/help/C/figures/polari.png b/help/C/figures/polari.png
new file mode 100644
index 0000000..c3f6982
Binary files /dev/null and b/help/C/figures/polari.png differ
diff --git a/help/C/index.page b/help/C/index.page
index dd8e024..068c0e3 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -122,7 +122,7 @@
 
   <section id="polari">
     <title>Upgrade Your IRC</title>
-    <media type="image" src="figures/placeholder.png"/>
+    <media type="image" src="figures/polari.png"/>
     <p>3.20 has been a big release for Polari, GNOME’s IRC application. The
     online paste service feature that was introduced last release has been
     substantially improved: in addition to being able to paste blocks of text
diff --git a/help/Makefile.am b/help/Makefile.am
index 8f96f88..9db1470 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -24,6 +24,7 @@ HELP_MEDIA = \
  figures/media-controls.png \
  figures/xdg-app.png \
  figures/cantarell.png \
- figures/gtk-inspector.png
+ figures/gtk-inspector.png \
+ figures/polari.png
 
 HELP_LINGUAS = cs de es fr gl hu ja ko lt pl pt_BR sv tr uk