man/io_uring_register_buffers.3: add reference to buffer rings

Signed-off-by: Jens Axboe <axboe@kernel.dk>

man/io_uring_register_buffers.3

diff --git a/man/io_uring_register_buffers.3 b/man/io_uring_register_buffers.3
index ce5ca4c..84aa5b9 100644
--- a/man/io_uring_register_buffers.3
+++ b/man/io_uring_register_buffers.3
@@ -38,4 +38,4 @@
 .BR io_uring_register_buffers (3)
 returns 0. On failure it returns -errno.
 .SH SEE ALSO
-.BR io_uring_get_sqe (3), io_uring_unregister_buffers (3), io_uring_prep_read_fixed (3), io_uring_prep_write_fixed (3)
+.BR io_uring_get_sqe (3), io_uring_unregister_buffers (3), io_uring_register_buf_ring (3), io_uring_prep_read_fixed (3), io_uring_prep_write_fixed (3)