kops: add README (#7358)

plugins/kops/README.md

+# kops
+
+This plugin provides completion for [kops](https://github.com/kubernetes/kops) (Kubernetes Operations),
+the command line interface to get a production grade Kubernetes cluster up and running.
+
+To use it, add `kops` to the plugins array in your zshrc file.
+
+```
+plugins=(... kops)
+```
+
+**Author:** [@nmrony](https://github.com/nmrony)

plugins/kops/kops.plugin.zsh

-# Autocompletion for kops (Kubernetes Operations),
-# the command line interface to get a production grade
-# Kubernetes cluster up and running
-
-# Author: https://github.com/nmrony
-
 if [ $commands[kops] ]; then
   source <(kops completion zsh)
 fi