Code about `task` in "README.md" is out of date
Code about `task` in "README.md" is out of date

Signed-off-by: SiYu Zhao <793bbd6e15f695d11331065015d03a0acd350282@gmail.com>

thaJeztah/containerd,dmcgowan/containerd,vdemeester/containerd,mikebrow/containerd,dmcgowan/containerd,mikebrow/containerd,containerd/containerd,containerd/containerd,estesp/containerd,thaJeztah/containerd,estesp/containerd,vdemeester/containerd