pgsql: doc PG 17 relnotes: improve JSON casting item

doc PG 17 relnotes: improve JSON casting item

Reported-by: jian he

Discussion: /messages/by-id/CACJufxE0HY19F8Oo-wb-+i4bKDamiaL_aUV8qB69_8mwoScZow@mail.gmail.com

Backpatch-through: master

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/58294448797ead5b9d7ee0cb574963ffec98ba35

Modified Files
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doc/src/sgml/release-17.sgml | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)