pgsql: doc: Spell checking

doc: Spell checking

Branch
------
REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/ffb23488af5e6776935c46370465dcc1704e7540

Modified Files
--------------
contrib/pg_stat_statements/pg_stat_statements.c | 2 +-
doc/src/sgml/backup-manifest.sgml | 4 ++--
doc/src/sgml/extend.sgml | 2 +-
doc/src/sgml/fdwhandler.sgml | 2 +-
doc/src/sgml/glossary.sgml | 6 +++---
doc/src/sgml/maintenance.sgml | 2 +-
doc/src/sgml/monitoring.sgml | 2 +-
doc/src/sgml/ref/create_table.sgml | 4 ++--
doc/src/sgml/ref/pg_dump.sgml | 2 +-
doc/src/sgml/ref/pg_verifybackup.sgml | 6 +++---
doc/src/sgml/ref/pgbench.sgml | 2 +-
11 files changed, 17 insertions(+), 17 deletions(-)