Fixed some links and added JavaScript notes to 1.9

Added JavaScript release notes for 1.9 that came in today. Also fixed some links that pointed to the wrong content.

Author: oliver scholz

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

@@ -54,7 +54,7 @@ ms.custom: seodec18
 **Samples**
 
 - Added keyword recognition sample for Android [here](https://github.com/Azure-Samples/cognitive-services-speech-sdk/tree/master/samples/java/android/sdkdemo).
-- Added TTS sample for server scenario. Find the sample [here]https://github.com/Azure-Samples/cognitive-services-speech-sdk/blob/master/samples/csharp/sharedcontent/console/speech_synthesis_server_scenario_sample.cs) and [here](). 
+- Added TTS sample for the server scenario [here](https://github.com/Azure-Samples/cognitive-services-speech-sdk/blob/master/samples/csharp/sharedcontent/console/speech_synthesis_server_scenario_sample.cs).
 - Added Multi-device conversation quickstarts for C# and C++ [here](quickstarts/multi-device-conversation.md).