doc: adjust PG 12 release note sections
Tighten section designations.
Branch
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master
Details
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https://git.postgresql.org/pg/commitdiff/a6927996be59ac329d65d41cf058d0b1b0978eeb
Modified Files
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doc/src/sgml/release-12.sgml | 67 +++++++++++++++++++-------------------------
1 file changed, 29 insertions(+), 38 deletions(-)