tcp_rack.4: Update the SEE ALSO section

Correct the surname of one of authors of RFC 8985 and add RFC 5681 and
RFC 6937 (PRR: Proportional Rate Reduction for TCP).

Reviewed by:	tuexen
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D44399

share/man/man4/tcp_rack.4

@@ -23,7 +23,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd March 5, 2024
+.Dd March 18, 2024
 .Dt TCP_RACK 4
 .Os
 .Sh NAME
@@ -124,12 +124,28 @@ What method should we use for rate sampling 0=high, 1=low
 .Rs
 .%A "Neal Cardwell"
 .%A "Yuchung Cheng"
-.%A "Nandita Dukkipat"
+.%A "Nandita Dukkipati"
 .%A "Priyaranjan Jha"
 .%T "The RACK-TLP Loss Detection Algorithm for TCP"
 .%O "RFC 8985"
 .%D "February 2021"
 .Re
+.Rs
+.%A "M. Allman"
+.%A "V. Paxson"
+.%A "E. Blanton"
+.%T "TCP Congestion Control"
+.%O "RFC 5681"
+.%D "September 2009"
+.Re
+.Rs
+.%A "M. Mathis"
+.%A "Nandita Dukkipati"
+.%A "Yuchung Cheng"
+.%T "Proportional Rate Reduction for TCP"
+.%O "RFC 6937"
+.%D "May 2013"
+.Re
 .Sh HISTORY
 The
 .Nm