Tidy up README.md
Tidy up README.md

Edit README.md to provide a link to deploying kubernetes with Heat in VMs

Provide link to heat-kubernetes that Lars put together
Also explain directory layout

invenfantasy/kolla,intel-onp/kolla,dardelean/kolla-ansible,jasonbrooks/kolla,coolsvap/kolla,meticulo3366/kolla,jlabocki/superhappyfunshow,rahulunair/kolla,HackToday/kolla,negronjl/kolla,mandre/kolla,bdastur/kolla,mandre/kolla,bdastur/kolla,thetrav/kolla,LoHChina/kolla,meticulo3366/kolla,openstack/kolla,negronjl/kolla,thetrav/kolla,nihilifer/kolla,LoHChina/kolla,HackToday/kolla,stackforge/kolla,brk3/kolla,toby82/kolla,fdumpling/kolla,dardelean/kolla-ansible,mrangana/kolla,coolsvap/kolla,stackforge/kolla,mrangana/kolla,jasonbrooks/kolla,nihilifer/kolla,HackToday/kolla,invenfantasy/kolla,stackforge/kolla,rahulunair/kolla,GalenMa/kolla,fdumpling/kolla,tonyli71/kolla,coolsvap/kolla,intel-onp/kolla,negronjl/kolla,jakedahn/kolla,LoHChina/kolla,mandre/kolla,rajalokan/kolla,openstack/kolla,chenzhiwei/kolla,limamauricio/mykolla,toby82/kolla,GalenMa/kolla,jakedahn/kolla,toby82/kolla,chenzhiwei/kolla,invenfantasy/kolla,chenzhiwei/kolla,brk3/kolla,limamauricio/mykolla,tonyli71/kolla,rajalokan/kolla,jakedahn/kolla,limamauricio/mykolla,fdumpling/kolla,rajalokan/kolla,dardelean/kolla-ansible