doc: clarify wording about phantom reads

Bruce Momjian <bruce@momjian.us>

Commit: a9a230e623e551889b325bc5d50d9929e4d11a22
Author: Bruce Momjian <bruce@momjian.us>
Date: 2022-06-22T18:33:48Z
Releases: 15.0
doc: clarify wording about phantom reads

Reported-by: akhilhello@gmail.com

Discussion: https://postgr.es/m/165222922369.669.10475917322916060899@wrigleys.postgresql.org

Backpatch-through: 10

Files

PathChange+/−
doc/src/sgml/high-availability.sgml modified +1 −1
doc/src/sgml/mvcc.sgml modified +4 −3

Documentation touched