Update number-lookup.md

Author: ericasp16

articles/communication-services/quickstarts/telephony/number-lookup.md

@@ -51,7 +51,7 @@ dotnet build
 ```
 
 ### Connect to dev package feed
-The private preview version of the SDK is published to the dev nuget package feed. Directions for connecting to the dev feed can be found in the [contributing](https://github.com/Azure/azure-sdk-for-net/blob/main/CONTRIBUTING.md#nuget-package-dev-feed) guide.
+The private preview version of the SDK is published to the dev NuGet package feed. Directions for connecting to the dev feed can be found in the [contributing](https://github.com/Azure/azure-sdk-for-net/blob/main/CONTRIBUTING.md#nuget-package-dev-feed) guide.
 
 ### Install the package