update docs following token pool changes (#8933)

* update docs following token pool changes

* Update CONTRIBUTING.md

Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>

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Co-authored-by: Caleb Cartwright <calebcartwright@users.noreply.github.com>
Co-authored-by: repo-ranger[bot] <39074581+repo-ranger[bot]@users.noreply.github.com>