pgsql: doc: reorder logical replication benefits in a logical order

doc:  reorder logical replication benefits in a logical order

The previous ordering was hard to understand and remember.  Also adjust
wording to be more consistent with surrounding items.

Backpatch-through: master

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/acbc9beaaed6ee88416e1dcef5df77fd5baba0be

Modified Files
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doc/src/sgml/logical-replication.sgml | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)