[release-notes] Add utilities and shell improvements

[Matthias Clasen <matthiasc src gnome org>]

commit c23db1dbdf951f03a37be3da2774c1bf29255da7
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Sep 2 15:59:57 2020 -0400

    Add utilities and shell improvements

 help/C/index.page | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)
---
diff --git a/help/C/index.page b/help/C/index.page
index 41140004..bf49e3d5 100644
--- a/help/C/index.page
+++ b/help/C/index.page
@@ -44,6 +44,29 @@
     <p></p>
   </section>
 
+  <section>
+    <title>Utilities</title>
+    <p>Several utilities have been redesigned to provide a more polished and
+    elegant experience. This includes Screenshot and Sound Recorder.
+    <media type="image" src="figures/screenshot.png"/>
+    XXX Sound recorder screenshot
+    </p>
+  </section>
+
+  <section>
+    <title>Improved Screen Recording</title>
+    <p>Under the covers, the screen recording infrastructure in GNOME shell
+    has been improved to take advantage of pipewire and kernel APIs to reduce
+    the resource consumption and improve responsiveness.</p>t
+  </section>
+
+  <section>
+    <title>Better Multi-Monitor Support</title>
+    <p>GNOME Shell can now drive multiple monitors with different refresh
+    rates, making sure that you get the best possible experience out of your
+    desktop.</p>
+  </section>
+
   <section id="thats-not-all">
     <title>And That’s Not All…</title>
     <p>As usual, there are also many other smaller improvements in this GNOME