Updating Readme with basic instructions

GettingStartedGuides/HoloLens2_GettingStarted/README.md

@@ -12,3 +12,17 @@ urlFragment: HoloLens2_GettingStarted
 This sample, **HoloLens2_GettingStarted**, is the completed Unity project that results from following the steps in the tutorial [Get started with WebView2 in HoloLens 2 Unity apps](https://learn.microsoft.com/microsoft-edge/webview2/get-started/hololens2).
 
 ![The running app from the finished HoloLens 2 tutorial](screenshots/hololens-getting-started-webview2.png)
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+
+Follow these steps to get started with this sample code. WebView2 is already included as a Unity package, but you will need to load it via the Mixed Reality Feature Tool.
+
+1. Clone this repository
+2. Launch the Microsoft Mixed Reality Feature Tool
+ - Click **Start**
+ - Click the **...** button, navigate to the `HoloLens2GetStartedApp` folder, and select **Open**
+ - With the project path selected, click **Restore Features** to load the required packages for the Mixed Reality Toolkit and the WebView2 plugin package.
+3. Close the Mixed Reality Feature Tool
+4. Launch Unity Hub
+5. In Unity Hub, click **Open**, navigate to the `HoloLens2GetStartedApp` folder, and select **Open**. This should open the project in the Unity Editor.
+6. In the Unity Editor, find the SampleScene in the `Assets/Scenes` folder and double-click to load it.
+7. Click the play button in the Unity Editor to quickly test the app.