update Prev/Next Topic link on user_guide/libraries/zip.html
diff --git a/user_guide/libraries/zip.html b/user_guide/libraries/zip.html
index 2fc5fd8..e6405cc 100644
--- a/user_guide/libraries/zip.html
+++ b/user_guide/libraries/zip.html
@@ -279,7 +279,7 @@
    ·  
 <a href="#top">Top of Page</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
 <a href="../index.html">User Guide Home</a>&nbsp;&nbsp;&nbsp;&middot;&nbsp;&nbsp;
-Next Topic:&nbsp;&nbsp;<a href="../helpers/array_helper.html">Array Helper</a>
+Next Topic:&nbsp;&nbsp;<a href="caching.html">Caching Class</a>
 </p>
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 </div>