Cleanup prerequisites section in README.md
Cleanup prerequisites section in README.md

Make it easier to copy/paste and run.

Signed-off-by: Mrunal Patel <d389837b018b67489df74a2c5f0aca13aaed44b6@gmail.com>

apilloud/cri-o,rhatdan/cri-o,nalind/cri-o,kubernetes-incubator/cri-o,umohnani8/cri-o,kubernetes-incubator/ocid,vbatts/cri-o,rhatdan/cri-o,vbatts/cri-o,mikebrow/cri-o,kubernetes-incubator/cri-o,apilloud/cri-o,kubernetes-incubator/ocid,aweiteka/cri-o,aweiteka/cri-o,aweiteka/cri-o,nalind/cri-o,jwhonce/ocid,mheon/cri-o,vbatts/cri-o,kubernetes-incubator/cri-o,14rcole/cri-o,14rcole/cri-o,umohnani8/cri-o,umohnani8/cri-o,14rcole/cri-o,kubernetes-incubator/ocid,mikebrow/cri-o,mikebrow/cri-o,mheon/cri-o,rhatdan/cri-o,mheon/cri-o,kubernetes-incubator/cri-o,rhatdan/cri-o,jwhonce/ocid,apilloud/cri-o,vbatts/cri-o,mikebrow/cri-o,jwhonce/ocid,mheon/cri-o,umohnani8/cri-o,14rcole/cri-o,nalind/cri-o