Add my buildbot to list of libc++ buildbots in documentation

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@219894 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/www/index.html b/www/index.html
index d4adfe7..6070c2a 100644
--- a/www/index.html
+++ b/www/index.html
@@ -151,6 +151,9 @@
       <li><a href="http://lab.llvm.org:8011/builders/libcxx-libcxxabi-x86_64-linux-debian">
         clang-libcxxabi-x86_64-linux-debian
       </a></li>
+      <li><a href="http://http://lab.llvm.org:8011/builders/libcxx-libcxxabi-x86_64-linux-ubuntu">
+        clang-libcxxabi-x86_64-linux-ubuntu
+      </a></li>
     </ul>
 
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