feat(skaffold): add completion (#11357)

plugins/skaffold/README.md

@@ -0,0 +1,9 @@
+# Skaffold plugin (Autocompletion)
+
+This plugin adds completion for [Skaffold](https://skaffold.dev)
+
+To use it, add `skaffold` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... skaffold)
+```