next and previous links fixed up
diff --git a/user_guide/libraries/benchmark.html b/user_guide/libraries/benchmark.html
index 0f447cd..7176d05 100644
--- a/user_guide/libraries/benchmark.html
+++ b/user_guide/libraries/benchmark.html
@@ -189,7 +189,7 @@
<div id="footer">
<p>
-Previous Topic: <a href="../general/alternative_php.html">Alternative PHP Syntax</a>
+Previous Topic: <a href="../general/security.html"> Security</a>
·
<a href="#top">Top of Page</a> ·
<a href="../index.html">User Guide Home</a> ·