updating GitHub link

Author: oliver scholz

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

@@ -599,7 +599,7 @@ description: Get started with the Speech service. Recognize speech, synthesize s
                         <a href="#support">Support</a>
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-                                <a href="https://github.com/Azure-Samples?utf8=%E2%9C%93&q=cognitive&type=&language=">
+                                <a href="https://github.com/Azure-Samples/cognitive-services-speech-sdk/issues">
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