i18n(de): update translation reference/overrides.md file into German

[trueberryless]

What kind of changes does this PR include?

• translate outdated file reference/overrides.md into German

#Hacktoberfest

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Latest commit: 8e7c1f9

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[HiDeoo]

Thanks for the update 🙌

As a non-native speaker, I reviewed this PR using the Docs Translation Review Checklist and everything looks good to me 👍

[delucis]

Thanks for reviewing @HiDeoo and thanks for the update @trueberryless 🙌