docs: corrected the URL

Author: mfranzke

README.md

@@ -21,7 +21,7 @@
 
 > [!WARNING]
 > We've tried a [quick migration to newer SCSS syntax like e.g. `@use` instead of the nowadays deprecated `@import`](https://github.com/db-ui/core/issues/994), but this seems to be more complicated than expected.
-> You might face several warnings on the console when using SASS with our packages regarding `@import` usage. If you'd like to prevent those, you might as well want to evaluate migrating to our newer version of the DB UX Design System v2: <https://github.com/db-ui/mono>
+> You might face several warnings on the console when using SASS with our packages regarding `@import` usage. If you'd like to prevent those, you might as well want to evaluate migrating to our newer version of the DB UX Design System: <https://github.com/db-ux-design-system/core-web>
 
 DB Personenverkehr and DB Systel have merged their Design Systems for Web [with DB UX Design System v2](https://marketingportal.extranet.deutschebahn.com/marketingportal/Design-Anwendungen/db-ux-design-system/version-2/Components) as their successor. Our goal is to provide a common UX based on the [DB "Moderne Ikone"](https://marketingportal.extranet.deutschebahn.com/marketingportal/Marke-und-Design#) for customer and employee applications. To achieve an end 2 end consistence from conception to implementation, we bring you this new version of DB UI Core (npm: `@db-ui/core`), that is being used within a Design System by S.R (Reisendeninformation) as well.