[release-notes] added ryu to virt beat

[Pete Travis]

commit d8be233048f487d495f548de0300dd90bb029415
Author: Pete Travis <immanetize at fedoraproject.org>
Date:   Sun Oct 20 15:05:38 2013 -0600

    added ryu to virt beat

 en-US/Virtualization.xml |   22 +++++++++++++++++++++-
 1 files changed, 21 insertions(+), 1 deletions(-)
---
diff --git a/en-US/Virtualization.xml b/en-US/Virtualization.xml
index d8ed038..f079b18 100644
--- a/en-US/Virtualization.xml
+++ b/en-US/Virtualization.xml
@@ -76,7 +76,27 @@
     </simplelist>
   </para>
 </section>
-
+<section id="virtualization-ryu">
+  <title>Ryu Software Defined Networking</title>
+  <para>
+    Fedora 20 features <productname>Ryu</productname>, software that enables effective, software defined networking for <productname>OpenStack</productname> virtualization. As a building block of an <productname>OpenFlow</productname> controller, Ryu provides a <literal>Layer 2</literal> isolated network for Openstack.
+  </para>
+  <para>
+    For more information, read:
+    <simplelist>
+      <member>
+	<ulink url="http://osrg.github.com/ryu/" />
+      </member>
+      <member>
+	<ulink url="https://github.com/osrg/ryu/wiki" />
+      </member>
+      <member> 
+	<ulink url="http://osrg.github.com/ryu/doc/index.html" />
+      </member>
+    </simplelist>
+  </para>
+</section>
+