Issue #2574981 by Manjit.Singh, dimaro, wengerk, darol100, izus, pguillard,...

Issue #2574981 by Manjit.Singh, dimaro, wengerk, darol100, izus, pguillard, vsujeetkumar, Himanshu5050, snehi, paulocs, rakesh.gectcr, jofitz, _utsavsharma, charginghawk, rajeshwari10, sdstyles, quietone, benjifisher, marcusvsouza, LoMo, joelpittet, justAChris, cilefen, YesCT, mradcliffe, spitzialist, annajl, jhodgdon, catch, alexpott, Sabbi0612, kattekrab, Mile23, antojose, leanderl, rodrigoac: Fix grammar ("an URL" should be "a URL") and consistent use of URL (not "url" / "Url") in documentation only

(cherry picked from commit 00bcd174)