diff -r 1835bf2e2bc2 -r cdf2574671d1 Cookbook/menu.html
--- a/Cookbook/menu.html	Thu Feb 22 13:56:12 2024 +0000
+++ b/Cookbook/menu.html	Thu Feb 22 14:42:56 2024 +0000
@@ -25,7 +25,7 @@
 </tr>
 
 <tr>
-<td style="background-color: rgb(224, 224, 240);"> <IMG SRC="new.gif" ALT="" style="" align="left"><a href="https://talisker.nms.kcl.ac.uk/cgi-bin/repos.cgi/isabelle-cookbook/raw-file/tip/progtutorial.pdf" onclick="pageTracker._trackPageview('tutorial');" target="_top">
+<td style="background-color: rgb(224, 224, 240);"> <IMG SRC="new.gif" ALT="" style="" align="left"><a href="https://cflmark.nms.kcl.ac.uk/hg/isabelle-cookbook/raw-file/tip/progtutorial.pdf" onclick="pageTracker._trackPageview('tutorial');" target="_top">
 Latest Draft</a>  (updated to Isabelle 2019 thanks to Norbert Schirmer)<BR><BR><BR></td>
 </tr>