docs(guide): grammar fix
use of the article, both definite and indefinite, is not optional Closes #5981
G
George Cox committed
832be4123d1c68cee6c4ad766cd5d47d388d2bfb
Parent: ffe5115
Committed by Pawel Kozlowski <pkozlowski.opensource@gmail.com>
on 2/22/2014, 10:23:20 PM