Merge pull request #223016 from eric-urban/patch-1

C# reference link

Author: prmerger-automator[bot]

articles/cognitive-services/Speech-Service/speech-sdk.md

@@ -24,7 +24,7 @@ The Speech SDK supports the following languages and platforms:
 
 | Programming language | Reference | Platform support |
 |----------------------|----------|----------|
-| [C#](quickstarts/setup-platform.md?pivots=programming-language-csharp) <sup>1</sup> | [.NET](/dotnet/api/overview/azure/cognitiveservices/client/speechservice) | Windows, Linux, macOS, Mono, Xamarin.iOS, Xamarin.Mac, Xamarin.Android, UWP, Unity |
+| [C#](quickstarts/setup-platform.md?pivots=programming-language-csharp) <sup>1</sup> | [.NET](/dotnet/api/microsoft.cognitiveservices.speech) | Windows, Linux, macOS, Mono, Xamarin.iOS, Xamarin.Mac, Xamarin.Android, UWP, Unity |
 | [C++](quickstarts/setup-platform.md?pivots=programming-language-cpp) <sup>2</sup> | [C++](/cpp/cognitive-services/speech/) | Windows, Linux, macOS |
 | [Go](quickstarts/setup-platform.md?pivots=programming-language-go) | [Go](https://github.com/Microsoft/cognitive-services-speech-sdk-go) | Linux | 
 | [Java](quickstarts/setup-platform.md?pivots=programming-language-java) | [Java](/java/api/com.microsoft.cognitiveservices.speech) | Android, Windows, Linux, macOS |