Update README.md

README.md

@@ -2,6 +2,12 @@
 ML detected building footprints and height open database. Bing Maps open building footprints. with partial global coverage, only US and Europe included here.
 
 ---
+
+[![GitLab License](https://img.shields.io/gitlab/license/fact%2Fdata%2FFACT_bldgs?gitlab_url=https%3A%2F%2Fgit.nilu.no&style=flat&color=orange)](https://opendatacommons.org/licenses/odbl/1-0/)
+[![DOI](https://img.shields.io/badge/DOI-10.17605%2FOSF.IO%2FPV4ZW-blue?style=flat)](https://doi.org/10.17605/OSF.IO/PV4ZW)
+
+---
+
 ## Use
 1. Pull the image:
 > docker pull registry.git.nilu.no/fact/data/fact_bldgs:latest