pgsql: Copy editing: fix a bunch of misspellings and poor wording.

Copy editing: fix a bunch of misspellings and poor wording.

99% of this is docs, but also a couple of comments. No code changes.

Justin Pryzby

Discussion: https://postgr.es/m/20200919175804.GE30557@telsasoft.com

Branch
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REL_13_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/e62c5ea22c12f63d8d5ca3b228a458dfc10ae314

Modified Files
--------------
doc/src/sgml/btree.sgml | 2 +-
doc/src/sgml/catalogs.sgml | 3 ++-
doc/src/sgml/config.sgml | 22 +++++++++++-----------
doc/src/sgml/ddl.sgml | 2 +-
doc/src/sgml/func.sgml | 4 ++--
doc/src/sgml/libpq.sgml | 2 +-
doc/src/sgml/logical-replication.sgml | 2 +-
doc/src/sgml/monitoring.sgml | 4 ++--
doc/src/sgml/protocol.sgml | 4 ++--
doc/src/sgml/ref/alter_statistics.sgml | 3 ++-
doc/src/sgml/ref/alter_table.sgml | 2 +-
doc/src/sgml/ref/pg_basebackup.sgml | 4 ++--
doc/src/sgml/ref/pg_dump.sgml | 2 +-
doc/src/sgml/ref/pg_rewind.sgml | 4 ++--
doc/src/sgml/ref/pgbench.sgml | 4 ++--
doc/src/sgml/ref/reindex.sgml | 2 +-
doc/src/sgml/ref/reindexdb.sgml | 4 ++--
doc/src/sgml/ref/vacuumdb.sgml | 4 ++--
doc/src/sgml/runtime.sgml | 2 +-
doc/src/sgml/sources.sgml | 2 +-
src/backend/access/gin/README | 2 +-
src/backend/utils/adt/jsonpath_exec.c | 2 +-
src/test/regress/expected/partition_join.out | 2 +-
src/test/regress/sql/partition_join.sql | 2 +-
24 files changed, 44 insertions(+), 42 deletions(-)