net: Add part of TCP counts explanations in snmp_counters.rst

Add explanations of some generic TCP counters, fast open
related counters and TCP abort related counters and several
examples.

Signed-off-by: yupeng <yupeng0921@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
yupeng 2018-11-16 11:17:40 -08:00 • committed by David S. Miller
commit 80cc49507b