Rewrite page(2) references to page(3).
Add description of new libmach.
diff --git a/man/man3/9p.3 b/man/man3/9p.3
index 48d029e..e3859b1 100644
--- a/man/man3/9p.3
+++ b/man/man3/9p.3
@@ -108,13 +108,13 @@
.B Fid
structures are allocated one-to-one with uncompleted
requests and active fids, and are described in
-.IR 9pfid (2).
+.IR 9pfid (3).
.PP
The behavior of
.I srv
depends on whether there is a file tree
(see
-.IR 9pfile (2))
+.IR 9pfile (3))
associated with the server, that is,
whether the
.B tree
@@ -178,11 +178,11 @@
Fork a child process via
.I rfork
(see
-.IR fork (2))
+.IR fork (3))
or
.I procrfork
(see
-.IR thread (2)),
+.IR thread (3)),
using the
.BR RFFDG ,
.RR RFNOTEG ,
@@ -216,7 +216,7 @@
this process, the entire process is terminated by calling
.I sysfatal
(see
-.IR perror (2)).
+.IR perror (3)).
.SS Service functions
The functions in a
.B Srv
@@ -334,7 +334,7 @@
is the program name variable as set by
.I ARGBEGIN
(see
-.IR arg (2)).
+.IR arg (3)).
.TP
.I Attach
The
@@ -702,7 +702,7 @@
from its caller) terminates using
.I _exits
(see
-.IR exits (2)).
+.IR exits (3)).
.PD
.PP
If the
@@ -750,8 +750,8 @@
.SH SOURCE
.B /sys/src/lib9p
.SH SEE ALSO
-.IR 9pfid (2),
-.IR 9pfile (2),
+.IR 9pfid (3),
+.IR 9pfile (3),
.IR srv (3),
.IR intro (5)
.SH BUGS
