Merge pull request #37775 from niuzhenguo/api-extension

[zh] sync weight for api-extension

Author: k8s-ci-robot

content/zh-cn/docs/concepts/extend-kubernetes/api-extension/_index.md

@@ -1,4 +1,4 @@
 ---
 title: 扩展 Kubernetes API
-weight: 20
+weight: 30
 ---