Add reference to `contributing/setup.md`
Add reference to `contributing/setup.md`

Co-Authored-By: Mislav Marohnić <6632ac21a29540dacfe4f8db5c981c1cb49b8bc9@gmail.com>

j-f1/forked-desktop,desktop/desktop,j-f1/forked-desktop,artivilla/desktop,say25/desktop,kactus-io/kactus,shiftkey/desktop,artivilla/desktop,shiftkey/desktop,shiftkey/desktop,say25/desktop,j-f1/forked-desktop,kactus-io/kactus,kactus-io/kactus,desktop/desktop,say25/desktop,kactus-io/kactus,say25/desktop,desktop/desktop,desktop/desktop,j-f1/forked-desktop,shiftkey/desktop,artivilla/desktop,artivilla/desktop