Description update

Author: rolyon

articles/role-based-access-control/built-in-roles.md

@@ -400,7 +400,7 @@ The following table provides a brief description of each built-in role. Click th
 > | <a name='billing-reader'></a>[Billing Reader](./built-in-roles/management-and-governance.md#billing-reader) | Allows read access to billing data | fa23ad8b-c56e-40d8-ac0c-ce449e1d2c64 |
 > | <a name='blueprint-contributor'></a>[Blueprint Contributor](./built-in-roles/management-and-governance.md#blueprint-contributor) | Can manage blueprint definitions, but not assign them. | 41077137-e803-4205-871c-5a86e6a753b4 |
 > | <a name='blueprint-operator'></a>[Blueprint Operator](./built-in-roles/management-and-governance.md#blueprint-operator) | Can assign existing published blueprints, but cannot create new blueprints. Note that this only works if the assignment is done with a user-assigned managed identity. | 437d2ced-4a38-4302-8479-ed2bcb43d090 |
-> | <a name='carbon-optimization-reader'></a>[Carbon Optimization Reader](./built-in-roles/management-and-governance.md#carbon-optimization-reader) | /azure/carbon-optimization/permissions | fa0d39e6-28e5-40cf-8521-1eb320653a4c |
+> | <a name='carbon-optimization-reader'></a>[Carbon Optimization Reader](./built-in-roles/management-and-governance.md#carbon-optimization-reader) | Allow read access to Azure Carbon Optimization data | fa0d39e6-28e5-40cf-8521-1eb320653a4c |
 > | <a name='cost-management-contributor'></a>[Cost Management Contributor](./built-in-roles/management-and-governance.md#cost-management-contributor) | Can view costs and manage cost configuration (e.g. budgets, exports) | 434105ed-43f6-45c7-a02f-909b2ba83430 |
 > | <a name='cost-management-reader'></a>[Cost Management Reader](./built-in-roles/management-and-governance.md#cost-management-reader) | Can view cost data and configuration (e.g. budgets, exports) | 72fafb9e-0641-4937-9268-a91bfd8191a3 |
 > | <a name='hierarchy-settings-administrator'></a>[Hierarchy Settings Administrator](./built-in-roles/management-and-governance.md#hierarchy-settings-administrator) | Allows users to edit and delete Hierarchy Settings | 350f8d15-c687-4448-8ae1-157740a3936d |

articles/role-based-access-control/built-in-roles/management-and-governance.md

@@ -618,7 +618,9 @@ Can assign existing published blueprints, but cannot create new blueprints. Note
 
 ## Carbon Optimization Reader
 
-/azure/carbon-optimization/permissions
+Allow read access to Azure Carbon Optimization data
+
+[Learn more](/azure/carbon-optimization/permissions)
 
 > [!div class="mx-tableFixed"]
 > | Actions | Description |