docs: [Deploy] Add resource definition for Revision (#8202)

* feat: Add resource definition for Revision
docs: Typos fixes and small improvements

PiperOrigin-RevId: 742835092

Source-Link: googleapis/googleapis@453b0cc

Source-Link: googleapis/googleapis-gen@b53fe84
Copy-Tag: eyJwIjoiRGVwbG95Ly5Pd2xCb3QueWFtbCIsImgiOiJiNTNmZTg0MTMyZDIxNGFmNjc4ZmMzZmE2YTNhMTViYWY4ODQ1NzI4In0=

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

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Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]