Обсуждение: pgsql: doc: update PG 11 release notes

doc:  update PG 11 release notes

Discussion: https://postgr.es/m/1f5b2e66-7ba8-98ec-c06a-aee9ff33f050@postgresql.org

Author: Jonathan S. Katz

Backpatch-through: 11

Branch
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REL_11_STABLE

Details
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https://git.postgresql.org/pg/commitdiff/076cfffb39af281f4e3b7d9852715bb09e214171

Modified Files
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doc/src/sgml/release-11.sgml | 59 +++++++++++++++++++++++++-------------------
1 file changed, 33 insertions(+), 26 deletions(-)