docs: fix doc linter warning and error in `accessibility.md` (#47282)
docs: fix doc linter warning and error in `accessibility.md` (#47282)

PR Close #47282

angular-indonesia/angular,gnomeontherun/angular,gnomeontherun/angular,gkalpak/angular,angular-indonesia/angular,angular-indonesia/angular,angular/angular,gnomeontherun/angular,gkalpak/angular,angular-indonesia/angular,gkalpak/angular,angular/angular,angular/angular,gkalpak/angular,JiaLiPassion/angular,gnomeontherun/angular,JiaLiPassion/angular,JiaLiPassion/angular,angular/angular,JiaLiPassion/angular