Обсуждение: pgsql: Fix documentation for POSIX semaphores.

Fix documentation for POSIX semaphores.

The documentation for POSIX semaphores is missing a reference to
max_wal_senders.  This commit fixes that in the same way that
commit 4ebe51a5fb fixed the same issue in the documentation for
System V semaphores.

Discussion: https://postgr.es/m/20240517164452.GA1914161%40nathanxps13
Backpatch-through: 12

Branch
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REL_12_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/78fe33742dccc23d4b8a4a1cc7a311e7be0403d1

Modified Files
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doc/src/sgml/runtime.sgml | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)