[ja] Translate content/en/docs/reference/glossary/wg.md into Japanese

[kfess]

This is a Feature Request

What would you like to be added

Translate content/en/docs/reference/glossary/wg.md into Japanese

Website Link

• English: https://kubernetes.io/docs/reference/glossary/?community=true#term-wg

Why is this needed

This page is not translated yet.

/area localization
/language ja
/assign

[t-inu]

/triage accepted