chore: update Booker atom docs (calcom#24755)

* chore: update booker atom docs

* chore: implement PR feedback

* Update docs/platform/atoms/booker.mdx

Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

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Co-authored-by: chauhan_s <somaychauhan98@gmail.com>
Co-authored-by: cubic-dev-ai[bot] <191113872+cubic-dev-ai[bot]@users.noreply.github.com>

Author: 3 people