Fixing broken luis link

Author: erhopf

articles/cognitive-services/Speech-Service/includes/quickstarts/intent-recognition/luis-sign-up.md

@@ -17,7 +17,7 @@ The first thing you'll need to do is create a LUIS account and app using the LUI
 
 Follow these instructions to create your LUIS app: 
 
-* <a href="../luis/luis-get-started-create-app.md" target="_blank">Quickstart: Build prebuilt domain app</a>
+* <a href="../../luis/luis-get-started-create-app.md" target="_blank">Quickstart: Build prebuilt domain app</a>
 
 When you're done, you'll need three things: