docs: Update policy documentation

[yevgenypats]

Summary

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Use the following steps to ensure your PR is ready to be reviewed

• Read the contribution guidelines 🧑‍🎓
• Run go fmt to format your code 🖊
• Lint your changes via golangci-lint run 🚨 (install golangci-lint here)
• Update or add tests. Learn more about testing here 🧪
• Update the docs by running go run ./docs/docs.go and committing the changes 📃
• If adding a new resource, add relevant Terraform files in a separate PR 📂
• Ensure the status checks below are successful ✅