pgsql: doc: Move wal_init_zero and wal_recycle descriptions to proper s

doc: Move wal_init_zero and wal_recycle descriptions to proper section.

The group of wal_init_zero and wal_recycle is WAL_SETTINGS in guc.c,
but previously their documents were located in
"Replication"/"Sending Servers" section. This commit moves them to
the proper section "Write Ahead Log"/"Settings".

Back-patch to v12 where wal_init_zero and wal_recycle parameters
were introduced.

Author: Fujii Masao
Discussion: https://postgr.es/m/b5190ab4-a169-6a42-0e49-aed0807c8976@oss.nttdata.com

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/43e592c706f8ce073d166f541687ad8f02dc22c0

Modified Files
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doc/src/sgml/config.sgml | 70 ++++++++++++++++++++++++------------------------
1 file changed, 35 insertions(+), 35 deletions(-)