Link fix.

Doc/inst/inst.tex

@@ -703,7 +703,7 @@ for installing fixed versions of standard modules.)
 Paths can be absolute or relative, in which case they're relative to
 the directory containing the \file{.pth} file.  Any directories added
 to the search path will be scanned in turn for \file{.pth} files.  See
-\citetitle[http://www.python.org/doc/devel/lib/module-site.html]
+\citetitle[http://docs.python.org/lib/module-site.html]
 {site module documentation} for more information.
 
 A slightly less convenient way is to edit the \file{site.py} file in