fixing link of jit homepage in README.md
fixing link of jit homepage in README.md

pingjiang/jit,shzy2012/jit,philogb/jit,shzy2012/jit,mcanthony/jit,shelsonjava/jit,pingjiang/jit,tim777z/jit,printedheart/jit,philogb/jit,shelsonjava/jit,printedheart/jit,tim777z/jit,shelsonjava/jit,mcanthony/jit,tim777z/jit,pingjiang/jit,printedheart/jit,mcanthony/jit,shzy2012/jit