updated front page image of sumana.

diff --git a/2018/index.html b/2018/index.html
index 7618cc3e4f718666007c463c5d89616f371822fa..817902beacfdc4e27a50175de454ad153d97239b 100755 (executable)
--- a/2018/index.html
+++ b/2018/index.html
@@ -40,7 +40,7 @@
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                <li class="item">
-                       <img src="https://static.fsf.org/nosvn/libreplanet/feature-images/sumana-speaking-with-cables.png" 
+                       <img src="https://static.fsf.org/nosvn/libreplanet/feature-images/sumana-speaking-with-cables.jpg" 
                        alt="[ Sumana Harihareswara speaking at a podium at LibrePlanet 2016. Between her and the camera is a table strewn with cables and computer equipment. ]" height="475">
                 <p class="carousel-caption-center">
                                Explore a wealth of <a href="https://www.libreplanet.org/2017/program/index.html">session videos and slides</a><br> from LibrePlanet 2017.</p>