Update example demo url (#390)

Author: bunnybones1

examples/react/README.md

@@ -2,7 +2,7 @@
 
 This demo showcases the sign in flow, the embedded wallet and the checkout component of Sequence Web SDK.
 
-View the [demo here](https://0xsequence.github.io/web-sdk)! 👀
+View the [demo here](https://web-sdk-react-example.pages.dev)! 👀
 
 ## Run Demo Locally