update

Author: zhiyuanliang-ms

articles/azure-app-configuration/feature-management-dotnet-reference.md

@@ -1351,7 +1351,7 @@ The `telemetry` section of a feature flag has the following properties:
 | Property | Description |
 | ---------------- | ---------------- |
 | `enabled` | Specifies whether telemetry should be published for the feature flag. |
-| `metadata` | A collection of key-value pairs, modeled as a dictionary, that can be used to attach custom metadata about the feature flag to evaluation events. |
+| `metadata` | A collection of key-value pairs, modeled as a dictionary, which can be used to attach custom metadata about the feature flag to evaluation events. |
 
 ### Custom Telemetry Publishing