[ko] Translate content/en/docs/contribute/blog/_index.md into Korean

[Eundms]

This is a Feature Request

What would you like to be added

Translate content/en/docs/contribute/blog/_index.md into Korean

Website Link

• English: https://kubernetes.io/docs/contribute/blog/

Why is this needed

This page is not translated yet.

/area localization
/language ko
/assign

[k8s-ci-robot]

This issue is currently awaiting triage.

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