[3.9] Minor grammar edits for the descriptor howto guide (GH-GH-23175)#23176

Merged

miss-islington merged 1 commit intopython:3.9from

miss-islington:backport-8031877-3.9

Nov 18, 2020

Commits on Nov 6, 2020

Minor grammar edits for the descriptor howto guide (GH-GH-23175)

rhettinger
authored and
miss-islington
committed