pgsql: doc PG 17 relnotes: wording adjustments

doc PG 17 relnotes: wording adjustments

Reported-by: jian he

Discussion: /messages/by-id/CACJufxHTJBqDmBC4iPgte_xd4aMgONRm680Ji5m5gCA8+YEmJg@mail.gmail.com

Co-authored-by: jian he

Backpatch-through: master

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/f6ebb418317a1e84be46e7e7b02a26d8c44984de

Modified Files
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doc/src/sgml/release-17.sgml | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)