Update HTKToMRTKPortingGuide.md

Author: cre8ivepark

Documentation/HTKToMRTKPortingGuide.md

@@ -110,7 +110,7 @@ Some events no longer have unique events and now contain a MixedRealityInputActi
 | Button                     | [Interactable Objects](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit-Examples/UX/Readme/README_InteractableObjectExample.md) | [Button](/Documentation/README_Button.md) |
 | Interactable                     | [Interactable Objects](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit-Examples/UX/Readme/README_InteractableObjectExample.md) | [Interactable](/Documentation/README_Interactable.md) |
 | Bounding Box             | [Bounding Box](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit-Examples/UX/Readme/README_BoundingBoxGizmoExample.md) | [Bounding Box](/Documentation/README_BoundingBox.md) |
-| App Bar             | [Bounding Box](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit-Examples/UX/Readme/README_BoundingBoxGizmoExample.md) | [App Bar](/Documentation/README_AppBar.md) |
+| App Bar             | [App Bar](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit-Examples/UX/Readme/README_BoundingBoxGizmoExample.md) | [App Bar](/Documentation/README_AppBar.md) |
 | One Hand Manipulation (Grb and Move)   | [HandDraggable](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit/Input/Scripts/Utilities/Interactions/HandDraggable.cs) | [Manipulation Handler](/Documentation/README_ManipulationHandler.md) |
 | Two Hand Manipulation (Grab/Move/Rotate/Scale)             | [TwoHandManipulatable](https://github.com/Microsoft/MixedRealityToolkit-Unity/blob/htk_release/Assets/HoloToolkit/Input/Scripts/Utilities/Interactions/TwoHandManipulatable.cs) | [Manipulation Handler](/Documentation/README_ManipulationHandler.md) |
 | Keyboard             | [Keyboard prefab]() | [System Keyboard](/Documentation/README_SystemKeyboard.md) |