[3.13] Docs: spelling and grammar fixes (GH-122084) (#122106)

Docs: spelling and grammar fixes (GH-122084)

Corrected some grammar and spelling issues in documentation.

(cherry picked from commit bc264eac3ad14dab748e33b3d714c2674872791f)

Co-authored-by: Ville Skyttä <ville.skytta@iki.fi>
Co-authored-by: Russell Keith-Magee <russell@keith-magee.com>
Co-authored-by: Bénédikt Tran <10796600+picnixz@users.noreply.github.com>