Merge pull request #672 from db-ui/docs-added-external-REUSE-service-check

docs: added external REUSE service check

Author: mfranzke

README.md

@@ -6,6 +6,7 @@ SPDX-License-Identifier: Apache-2.0
 
 # DB UI Base
 
+[![REUSE status](https://api.reuse.software/badge/github.com/db-ui/base)](https://api.reuse.software/info/github.com/db-ui/base)
 [![REUSE Compliance Check](https://github.com/db-ui/base/actions/workflows/99-reuse-compliance-check.yml/badge.svg)](https://github.com/db-ui/base/actions/workflows/99-reuse-compliance-check.yml) Creates copyright & license annotations with [REUSE](https://git.fsfe.org/reuse/tool)
 
 With DB UI Base we provide you with basic Design Tokens and assets based on the [DB Design System UX Guides + Standards](https://marketingportal.extranet.deutschebahn.com/marketingportal/Design-Anwendungen/db-ux-design-system/version-2/Components), that can be shared across web and native apps projects.