include Exploring-MTJ.pdf
diff --git a/contributing.php b/contributing.php
index df52d7a..a2de54a 100644
--- a/contributing.php
+++ b/contributing.php
@@ -57,7 +57,7 @@
You may also want to check out the <a href="/dsdp/mtj/development/presentations/Exploring-MTJ.pdf">Exploring MTJ</a> presentation to see how to start contributing to MTJ.
</p><center>
<p>
-<iframe src="http://docs.google.com/present/embed?id=dfnh34p6_0d47mt7gt&loop=true" frameborder="0" width="410" height="342"></iframe>
+<iframe src="http://docs.google.com/present/embed?id=dfnh34p6_0d47mt7gt&loop=true&size=m" frameborder="0" width="555" height="451"></iframe>
</p>
</center></div>
