Add link to live demo

Author: maraf

README.md

@@ -8,3 +8,7 @@ This sample shows how to use .NET on WASM integrated into a react application. I
 - **qrlibrary**: npm library implementing QR generation
   - **dotnet**: .NET implementation of QR generator
   - **react**: webpack bundled ract component for showing a QR code image
+
+## Live demo
+
+https://maraf.github.io/dotnet-wasm-react/