Document Krew installation method

[ahmetb]

It seems kubectl krew install popeye also works. Is that not a supported installation method? I don't see it in the README.

[lee-harmonic]

It installs quite an old version, perhaps the krew index should be updated?

[ahmetb]

For that, please consider setting up Krew release automation which helps you skip manually making updates to your Krew manifests on each new version and send a pull request. It’s a GitHub workflow bot that can run every time you push a new tag. Those PRs are automatically approved.