pgsql: doc PG 17 relnotes: add item about vacuum storage/limits/WAL

doc PG 17 relnotes: add item about vacuum storage/limits/WAL

Reported-by: Alvaro Herrera

Discussion: /messages/by-id/202405150838.sg5ddcexyyf4@alvherre.pgsql

Backpatch-through: master

Branch
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master

Details
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https://git.postgresql.org/pg/commitdiff/a8010d03e1f30c657b6c868fa857c7b8b53c3fbc

Modified Files
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doc/src/sgml/release-17.sgml | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)