Add news page for main instance

Change-Id: Ie97fba26dbe3708a9437a6646943e3ac8b9ee05c
diff --git a/templates/custom/doc/news.html.ep b/templates/custom/doc/news.html.ep
new file mode 100644
index 0000000..de94d39
--- /dev/null
+++ b/templates/custom/doc/news.html.ep
@@ -0,0 +1,5 @@
+% layout 'main', title => 'KorAP: ' . $c->loc('news');
+
+<h2 id="tutorial-top"><%= loc 'news' %></h2>
+
+%= include 'announcement', lang => $c->localize->preference