fix a few typos in README.md
fix a few typos in README.md

rowhit/redo,dinkelk/redo-python,rowhit/redo,pombredanne/redo,rowhit/redo,pombredanne/redo,dinkelk/redo-python,rowhit/redo,apenwarr/redo,apenwarr/redo,apenwarr/redo,pombredanne/redo,pombredanne/redo,dinkelk/redo-python,apenwarr/redo,dinkelk/redo-python