Update mixed-reality-docs/mr-dev-docs/develop/unity/vuforia-development-overview.md

Co-authored-by: Qikuan Zhou <54120054+qizho@users.noreply.github.com>

Author: lolambean

Diff for: mixed-reality-docs/mr-dev-docs/develop/unity/vuforia-development-overview.md

@@ -87,5 +87,5 @@ To change the performance mode in Unity, navigate to Vuforia Configuration (Ctrl
 * [Build and deploy a Unity Visual Studio solution to the Hololens](build-and-deploy-to-hololens.md)
 * [Vuforia documentation: Getting Started with Vuforia Engine for Windows 10 Development](https://developer.vuforia.com/library/vuforia-engine/getting-started/development-environments/getting-started-vuforia-engine-windows-10-development/)
 * [Vuforia documentation: Getting Started with Vuforia Engine in Unity](https://developer.vuforia.com/library/vuforia-engine/getting-started/development-environments/getting-started-vuforia-engine-unity/)
-* [Vuforia documentation: Native Vuforia Engine Sample]https://developer.vuforia.com/library/vuforia-engine/images-and-objects/image-targets/native-vuforia-engine-sample/?h=sample)
-* [Vuforia documentation: Enable Device Tracking in Unity](https://developer.vuforia.com/library/vuforia-engine/environments/device-tracking/enable-device-tracking-unity/?h=device+tracking)
+* [Vuforia documentation: Developing Vuforia Engine Apps for HoloLens](https://developer.vuforia.com/library/vuforia-engine/platform-support/digital-eyewear/hololens-apps/developing-vuforia-engine-apps-hololens/)
+* [Vuforia documentation: Enable Device Tracking in Unity](https://developer.vuforia.com/library/vuforia-engine/environments/device-tracking/enable-device-tracking-unity/)