feat: add deprecation notice

qrcode.react offers SVG support now and is more feature rich making this package obsolete

Author: no23reason

README.md

@@ -4,6 +4,11 @@
 
 React component for rendering SVG QR codes
 
+## ⚠️ Deprecation notice ⚠️
+
+The more popular and feature rich [`qrcode.react`](https://github.com/zpao/qrcode.react) which was the original inspiration of this package has added SVG support since this package was created. Its SVG is more optimal than the SVG generated by `react-qr-svg` and it also offers some cool features like image embedding.
+This makes `react-qr-svg` obsolete and so it has been marked as deprecated. Please use [`qrcode.react`](https://github.com/zpao/qrcode.react) instead.
+
 ## Demo
 
 Basic demo can be found at the [demo page](https://no23reason.github.io/react-qr-svg/#/demo).