Update README.md

Author: mfranzke

react-tailwind-template/README.md

@@ -1,5 +1,8 @@
 # React + TypeScript + Vite
 
+> [!IMPORTANT]
+> Please keep in mind, that we do not include the [`@db-ux/db-theme`](https://npmjs.com/@db-ux/db-theme) so you won't have the examples displayed with the DB font and only have a small stack of icons available.
+
 This template provides a minimal setup to get React working in Vite with HMR and some ESLint rules.
 
 Currently, two official plugins are available: