fix typo

index.php

@@ -108,7 +108,7 @@ $array_news_items[0] = array(
     5 => _("Some privacy improvements"),
     6 => _("Add a global proxy option"),
     7 => _("Make more use of proxy everytime we need to access the internet"),
-    8 => _("Improve search in roster")
+    8 => _("Improve search in roster"),
     9 => _("Full changelog, see") . " <a href = \"http://hg.gajim.org/gajim/file/9903fad02c40/ChangeLog\">"._("Full ChangeLog")."</a> ",
 	);