This is a Feature Request

What would you like to be added

Update content/ja/docs/concepts/overview/_index.md
https://kubernetes.io/ja/docs/concepts/overview/

Why is this needed

This page is out of date.
Need to update the following and so on.

• Add features in the "Why you need Kubernetes and what it can do" section.
• Reorder sections.
• Remove duplicated paragraph.

Comments

/area localization
/language ja
/assign