Fix badly edited doc sentence

Alvaro Herrera <alvherre@alvh.no-ip.org>

Commit: 3cabe3863015efc72d513d3aa3b47d03eed96f49
Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: 2018-04-06T20:41:44Z
Releases: 11.0
Fix badly edited doc sentence

Noted by Vik Fearing and Robert Haas

Files

PathChange+/−
doc/src/sgml/ref/create_table.sgml modified +2 −3

Documentation touched