Generalize documentation helpers

Change-Id: Iaba69a433f25d2160857694b0b434c51c02c0367
diff --git a/t/docembed.t b/t/docembed.t
index 8224fa7..2bdc69a 100644
--- a/t/docembed.t
+++ b/t/docembed.t
@@ -19,7 +19,7 @@
 $t->get_ok('/doc')
   ->text_is('nav > ul.nav > li.active a', 'KorAP')
   ->text_is('nav > ul.nav > li:last-child a', 'Privacy')
-  ->element_exists('nav > ul.nav > li:last-child a[href=/doc/privacy#tutorial-top]')
+  ->element_exists('nav > ul.nav > li:last-child a[href=/doc/privacy#page-top]')
   ;
 
 done_testing;