Updated doc links in README. minor formatting.
Updated doc links in README. minor formatting.

cesarmarinhorj/cubes,ubreddy/cubes,pombredanne/cubes,jell0720/cubes,cesarmarinhorj/cubes,pombredanne/cubes,jell0720/cubes,zejn/cubes,zejn/cubes,noyeitan/cubes,cesarmarinhorj/cubes,ubreddy/cubes,jell0720/cubes,pombredanne/cubes,noyeitan/cubes,ubreddy/cubes,zejn/cubes,noyeitan/cubes