Merge pull request #75 from unity/inputsystem-doc

Clarifying Docs of the New Input System Scene

Assets/Scenes/InputSystem/InputSystem.unity

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README.md

 This sample scene demonstrates the functionality of the `XR Interaction Toolkit` package. In the scene, you are able to place a cube on a plane which you can translate, rotate and scale with gestures. See the [`XR Interaction Toolkit Documentation`](https://docs.unity3d.com/Packages/com.unity.xr.interaction.toolkit@0.9/manual/index.html) for more details.
 
 ## Input System
-This sample demonstrates a version of the SimpleAR scene using Unity's new Input System. See the [`Input System Documentation`](https://docs.unity3d.com/Packages/com.unity.inputsystem@1.0/manual/index.html) for more details.
+This sample demonstrates a version of the SimpleAR scene using Unity's new Input System. See [`ARController.inputactions`](https://github.com/Unity-Technologies/arfoundation-samples/blob/latest-preview/Assets/Scenes/InputSystem/ARController.inputactions) for an example of an action map. For a demonstration on how these action map bindings are used, see the [`InputSystem_PlaceOnPlane.cs`](https://github.com/Unity-Technologies/arfoundation-samples/blob/latest-preview/Assets/Scenes/InputSystem/InputSystem_PlaceOnPlane.cs) script. For more details, see the [`Input System Documentation`](https://docs.unity3d.com/Packages/com.unity.inputsystem@1.0/manual/index.html).
 
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