Update policies and README

[localden]

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[learn-build-service-prod]

Learn Build status updates of commit 46a303d:

✅ Validation status: passed

File	Status	Preview URL	Details
.github/CODEOWNERS	✅Succeeded
.github/policies/auto-label-pr.yml	✅Succeeded	n/a (file deleted or renamed)
.github/policies/auto-merge-sync-pr.yml	✅Succeeded	n/a (file deleted or renamed)
.github/policies/handle-automatic-pr.yml	✅Succeeded
.github/policies/scheduled-prod-sync.yml	✅Succeeded
.github/policies/scheduled-stage-sync.yml	✅Succeeded
.github/policies/scheduled-sync.yml	✅Succeeded	n/a (file deleted or renamed)
README.md	✅Succeeded

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