Chore: Broker docs merging

[ununhexium]

Partially solved https://github.com/sovity/PMO-Software/issues/972

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1. The PR title is short and expressive.

   The PR title is short and expressive.
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2. I have updated the CHANGELOG.md. See [changelog_update.md](https://github.com/sovity/authority-portal/tree/main/docs/dev/changelog_updates.md) for more information.

   I have updated the CHANGELOG.md. See changelog_update.md for more information.
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3. I have updated the Deployment Migration Notes Section in the CHANGELOG.md for any configuration / external API changes.

   I have updated the Deployment Migration Notes Section in the CHANGELOG.md for any configuration / external API changes.
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4. I have performed a **self-review**

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[ununhexium]

Replaced by #921