Add links to getting started docs from the README.md
Add links to getting started docs from the README.md

0dataloss/pyrax,rackerlabs/heat-pyrax,opsdisk/pyrax,naemono/pyrax,sivel/pyrax,roelvv/pyrax,ddaeschler/pyrax,mandx/pyrax,rackspace/pyrax,EdLeafe/pyrax,vikomall/pyrax,briancurtin/pyrax,pratikmallya/pyrax