Update announce.md

Link to 2017 instead of 2016
diff --git a/source/announce.md b/source/announce.md
index 71fd40c..e9b7f7e 100644
--- a/source/announce.md
+++ b/source/announce.md
@@ -107,7 +107,7 @@
 You can download this version from our [download](download.cgi#struts-ga) page.
 
 <p class="pull-right">
-  Skip to: <a href="announce-2016.html">Announcements - 2017</a>
+  Skip to: <a href="announce-2017.html">Announcements - 2017</a>
 </p>
 
 <p class="pull-left">