Rewrite page(2) references to page(3).
Add description of new libmach.
diff --git a/man/man3/setjmp.3 b/man/man3/setjmp.3
index 093d18f..eb5a5bd 100644
--- a/man/man3/setjmp.3
+++ b/man/man3/setjmp.3
@@ -46,7 +46,7 @@
is the same as
.I longjmp
except that it is to be called from within a note handler (see
-.IR notify (2)).
+.IR notify (3)).
The
.I uregs
argument should be the first argument passed to the note handler.
@@ -90,7 +90,7 @@
.br
.B /sys/src/libc/$objtype/notejmp.c
.SH SEE ALSO
-.IR notify (2)
+.IR notify (3)
.SH BUGS
.PP
.I Notejmp
