update SDAV URL

Author: wkliao

index.html

@@ -256,7 +256,7 @@ <h2>Acknowledgements</h2>
 <li>National Science Foundation under the SDCI HPC program award numbers
 OCI-0724599 and HECURA program award numbers CCF-0938000.  </li>
 <li>Scientific Data, Analysis, and Visualization (<a
-href="http://www.sdav-scidac.org/">SDAV</a>) Institute under the DOE SciDAC
+href="https://sdm.lbl.gov/sdav/">SDAV</a>) Institute under the DOE SciDAC
 program.  </li>
 </ul>
 <p>