fix links

Author: PatrickFarley

articles/cognitive-services/Computer-vision/how-to/generate-thumbnail.md

@@ -44,4 +44,4 @@ A successful response writes the thumbnail image to the file specified in `<thum
 
 If you'd like to call Image Analysis APIs using a native SDK in the language of your choice, follow the quickstart to get set up.
 
-[Quickstart (Image Analysis)](../quickstarts-sdl/image-analysis-client-library.md)
+[Quickstart (Image Analysis)](../quickstarts-sdk/image-analysis-client-library.md)

articles/cognitive-services/Computer-vision/toc.yml

@@ -105,7 +105,7 @@ items:
     - name: Analyze videos in real time
       href: how-to/analyze-video.md
     - name: Generate a smart-cropped thumbnail
-      href: generate-thumbnail.md
+      href: how-to/generate-thumbnail.md
   - name: Concepts
     items:
     - name: Object detection

articles/cognitive-services/Custom-Vision-Service/overview.md

@@ -23,7 +23,7 @@ Azure Custom Vision is an image recognition service that lets you build, deploy,
 You can use Custom Vision through a client library SDK, REST API, or through the [Custom Vision web portal](https://customvision.ai/). Follow a quickstart to get started.
 
 > [!div class="nextstepaction"]
-> [Quickstart (web portal)](getting-started-build-a-classifier.md.md)
+> [Quickstart (web portal)](getting-started-build-a-classifier.md)
 
 :::image type="content" source="media/overview/image-example.png" alt-text="Screenshot of an image on the Custom Vision website with predicted tags." :::