Updated link for Objective-C new feature

The old link went to the list of objects, requiring customers to find the Connection object, click on it, and then see the details.
The new link goes to the Connection object page.

Author: oliver scholz

articles/cognitive-services/Speech-Service/releasenotes.md

@@ -21,7 +21,7 @@ ms.custom: seodec18
 
 - Multi-device conversation: connect multiple devices to the same speech or text-based conversation, and optionally translate messages sent between them. Learn more in [this article](multi-device-conversation.md). 
 - Keyword recognition support added for Android .aar package and added support for x86 and x64 flavors. 
-- Objective-C: `SendMessage` and `SetMessageProperty` methods added to `Connection` object. See documentation [here](https://docs.microsoft.com/en-us/objectivec/cognitive-services/speech/spxconnection).
+- Objective-C: `SendMessage` and `SetMessageProperty` methods added to `Connection` object. See documentation [here](https://docs.microsoft.com/objectivec/cognitive-services/speech/spxconnection).
 - TTS C++ api now supports `std::wstring` as synthesis text input, removing the need to convert a wstring to string before passing it to the SDK. See details [here](https://docs.microsoft.com/cpp/cognitive-services/speech/speechsynthesizer#speaktextasync). 
 - C#: [Language id](https://docs.microsoft.com/azure/cognitive-services/speech-service/how-to-automatic-language-detection?pivots=programming-language-csharp) and [source language config](https://docs.microsoft.com/azure/cognitive-services/speech-service/how-to-specify-source-language?pivots=programming-language-csharp) are now available.
 - JavaScript: Added a feature to `Connection` object to pass through custom messages from the Speech Service as callback `receivedServiceMessage`.