docs: add news item and link release notes for 13.0.0

Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
diff --git a/docs/index.html b/docs/index.html
index 1c8f10d..5c90f40 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -16,6 +16,13 @@
 
 <h1>News</h1>
 
+<h2>November 1, 2016</h2>
+<p>
+<a href="relnotes/13.0.0.html">Mesa 13.0.0</a> is released.  This is a
+new development release.  See the release notes for more information
+about the release.
+</p>
+
 <h2>September 15, 2016</h2>
 <p>
 <a href="relnotes/12.0.3.html">Mesa 12.0.3</a> is released.
diff --git a/docs/relnotes.html b/docs/relnotes.html
index c704d9e..50b447a 100644
--- a/docs/relnotes.html
+++ b/docs/relnotes.html
@@ -21,6 +21,7 @@
 </p>
 
 <ul>
+<li><a href="relnotes/13.0.0.html">13.0.0 release notes</a>
 <li><a href="relnotes/12.0.3.html">12.0.3 release notes</a>
 <li><a href="relnotes/12.0.2.html">12.0.2 release notes</a>
 <li><a href="relnotes/12.0.1.html">12.0.1 release notes</a>