Merge pull request #46643 from windsonsea/k8ctl

[zh] Add index.md and kubectl.md to kubectl/generated

Author: k8s-ci-robot

content/zh-cn/docs/reference/kubectl/generated/_index.md

@@ -0,0 +1,8 @@
+---
+title: "kubectl 参考"
+weight: 10
+---
+<!--
+title: "kubectl reference"
+weight: 10
+-->