doc: PG 13 relnotes: fix xref link and remove extra word
Branch------master
Details-------https://git.postgresql.org/pg/commitdiff/ec5afb0a4e050616fe6953e597fd1f61d47edc3a
Modified Files--------------doc/src/sgml/release-13.sgml | 4 ++--1 file changed, 2 insertions(+), 2 deletions(-)
