Initializing repo with readme file

README.md

+# UI Toolkit Unity Royale Runtime Demo
+
+Sample project to showcase the use of UI Toolkit for Runtime based on the [Unity Royale project](https://github.com/ciro-unity/UnityRoyale-Public).
+
+With this project we demo the use of UXML and USS files to build Runtime UI. Through the use of the UI Builder, you can author UI easily and see the results in the Game View when the UXML is set to a `UIDocument` Component in the scene, using a `PanelSettings` Asset to provide information such as scaling.
+
+Unity Royale is card-based tower defence game made to showcases URP and custom shaders, Addressables, Timeline Signals, and more.
+
+## Instalation
+
+Tested with **Unity 2020.1.0f1**
+
+## Contact
+
+If you have any questions about this example, join us on the [UI Toolkit Unity Forum](https://forum.unity.com/forums/ui-toolkit.178/).
+
+## Building
+
+This project uses Addressables and you need to build those if you want to create an executable of the project. Find the AddressableAssetSettings under Assets/AddressableAssetsData, select "Manage Groups" on the Inspector and click Build