Update snapshot references section for clarity

Corrected the term 'allowlist' to 'allow list' for clarity.

Author: Carolyn135

articles/azure-app-configuration/how-to-load-azure-front-door-configuration-provider.md

@@ -79,7 +79,7 @@ For a complete sample app, refer to [JavaScript App with Azure App Configuration
 - **Request scoping**: The key-value filters used by your application must match exactly the filters configured for the Azure Front Door endpoint; any mismatch will cause the request to be rejected. For example, if your endpoint is configured to allow access to keys starting with an "App1:" prefix, the application code must also load keys starting with "App1:". However, if your application loads keys starting with a more specific prefix like "App1:Prod:", the request is rejected. See [examples for matching application filters with endpoint filters](https://github.com/Azure/AppConfiguration/blob/main/docs/AzureFrontDoor/readme.md).
 - **Exclusively loading feature flags**: If your application loads only feature flags, you should add two filters in the Azure Front Door rules - one a key-value filter for ALL keys with no label and second a feature flag filter for all keys starting with your feature flag prefix.
 - **Refresh strategy**: Applications loading from Azure Front Door cannot use sentinel key refresh. If refresh is enabled, the application must be configured to [monitor all selected keys](./howto-best-practices.md#monitoring-all-selected-keys) for changes.
-- **Snapshot references**: If your application loads a key-value that is a [snapshot reference](./concept-snapshot-references.md), Azure Front Door must be configured to allowlist the referenced snapshot. Include the snapshot name in your Azure Front Door filters to enable snapshot resolution.
+- **Snapshot references**: If your application loads a key-value that is a [snapshot reference](./concept-snapshot-references.md), Azure Front Door must be configured to allow list the referenced snapshot. Include the snapshot name in your Azure Front Door filters to enable snapshot resolution.
 
 ## Troubleshooting