feat: add kubernetes-sigs/krew

[suzuki-shunsuke]

Close #69
Close #70
Close #71
Close #72
Close #73
Close #74

New Packages

• argoproj/argo-cd
  • Declarative continuous deployment for Kubernetes
  • https://argo-cd.readthedocs.io/
• ahmetb/kubectx, ahmetb/kubens
  • Faster way to switch between clusters and namespaces in kubectl
  • https://github.com/ahmetb/kubectx
• argoproj/argo-rollouts
  • Progressive Delivery for Kubernetes
  • https://argoproj.github.io/argo-rollouts/
• kubernetes-sigs/krew
  • Find and install kubectl plugins
  • https://krew.sigs.k8s.io/
• ahmetb/kubectl-tree
  • kubectl plugin to browse Kubernetes object hierarchies as a tree
  • https://github.com/ahmetb/kubectl-tree
• dty1er/kubecolor
  • colorizes kubectl output
  • https://github.com/dty1er/kubecolor