Consider submit kubectl-watch to krew-index

[Dentrax]

It would be nice to have this plugin in Krew!

• https://github.com/kubernetes-sigs/krew-index
• https://krew.sigs.k8s.io/docs/developer-guide/

[imuxin]

@Dentrax, thanks for reminding. It's on the roadmap now.

[imuxin]

PR: kubernetes-sigs/krew-index#2604