[PATCH v1] doc/ref/slib.texi: fix JACAL URL

[Lockywolf]

Make the URL in the slib-jacal manual point toward the current
JACAL URL as of 2023.

Signed-off-by: Lockywolf <for_guile.git_2023-08-16@lockywolf.net>
---
 doc/ref/slib.texi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/doc/ref/slib.texi b/doc/ref/slib.texi
index 388dae1f6..20ca0fd70 100644
--- a/doc/ref/slib.texi
+++ b/doc/ref/slib.texi
@@ -120,7 +120,7 @@ You can use Guile's interface to SLIB to invoke Jacal:
 For complete documentation on Jacal, please read the Jacal manual.  If
 it has been installed on line, you can look at @ref{Top, , Jacal, jacal,
 JACAL Symbolic Mathematics System}.  Otherwise you can find it on the web at
-@url{http://www-swiss.ai.mit.edu/~jaffer/JACAL.html}
+@url{https://people.csail.mit.edu/jaffer/JACAL}
 
 
 @c Local Variables:
-- 
2.35.8