Update README.rst
Update README.rst

Updating to include Redis required versions
blackskad/sixpack,spjwebster/sixpack,smokymountains/sixpack,seatgeek/sixpack,spjwebster/sixpack,seatgeek/sixpack,llonchj/sixpack,vpuzzella/sixpack,nickveenhof/sixpack,spjwebster/sixpack,blackskad/sixpack,vpuzzella/sixpack,smokymountains/sixpack,llonchj/sixpack,vpuzzella/sixpack,smokymountains/sixpack,seatgeek/sixpack,blackskad/sixpack,vpuzzella/sixpack,llonchj/sixpack,nickveenhof/sixpack,seatgeek/sixpack,nickveenhof/sixpack,llonchj/sixpack,blackskad/sixpack