jihoon-seo: Update cluster/images/hyperkube/README.md

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03-18 19:59
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pull-kubernetes-e2e-gce-device-plugin-gpu 62964 62857
pull-kubernetes-integration 49183 49102 48947
pull-kubernetes-kubemark-e2e-gce-big 41847 41769 41621
pull-kubernetes-local-e2e 601 598
pull-kubernetes-node-e2e 123826 123751 123608
pull-kubernetes-typecheck 44150 44075 43911
pull-kubernetes-verify 126573 126497 126326