chore: Add React admin announcement to README

README.md

@@ -2,6 +2,11 @@
 
 An open-source headless commerce platform built on [Node.js](https://nodejs.org) with [GraphQL](https://graphql.org/), [Nest](https://nestjs.com/) & [TypeScript](http://www.typescriptlang.org/), with a focus on developer productivity and ease of customization.
 
+> **📣 Announcement: We're are building a new React-based Admin Dashboard**
+>
+> Expected release of the alpha version is end of March. We're phasing out our Angular-based Admin UI with support until June 2026.
+> [Read more >>](https://vendure.io/blog/2025/02/vendure-react-admin-ui)
+
 [![Build Status](https://github.com/vendure-ecommerce/vendure/workflows/Build%20&%20Test/badge.svg)](https://github.com/vendure-ecommerce/vendure/actions) 
 [![Publish & Install](https://github.com/vendure-ecommerce/vendure/workflows/Publish%20&%20Install/badge.svg)](https://github.com/vendure-ecommerce/vendure/actions/workflows/publish_and_install.yml)
 [![Lerna](https://img.shields.io/badge/maintained%20with-lerna-cc00ff.svg)](https://lerna.js.org/)