docs: add news item and link release notes for mesa 10.4.6/10.5.0

Signed-off-by: Emil Velikov <emil.l.velikov@gmail.com>
diff --git a/docs/index.html b/docs/index.html
index 9b72bc1..e52dc44 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -16,6 +16,19 @@
 
 <h1>News</h1>
 
+<h2>March 06, 2015</h2>
+<p>
+<a href="relnotes/10.5.0.html">Mesa 10.5.0</a> is released.  This is a new
+development release.  See the release notes for more information about
+the release.
+</p>
+
+<h2>March 06, 2015</h2>
+<p>
+<a href="relnotes/10.4.6.html">Mesa 10.4.6</a> is released.
+This is a bug-fix release.
+</p>
+
 <h2>February 21, 2015</h2>
 <p>
 <a href="relnotes/10.4.5.html">Mesa 10.4.5</a> is released.