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README.md

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 Official statistics on population in US (Census) and Europe (EUROSTAT).
 
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+[![GitLab License](https://img.shields.io/gitlab/license/fact%2Fdata%2FFACT_population?gitlab_url=https%3A%2F%2Fgit.nilu.no&style=flat&color=orange)](https://www.gnu.org/licenses/agpl-3.0.en.html#license-text)
+[![DOI](https://img.shields.io/badge/DOI-10.17605%2FOSF.IO%2F8A3DR-blue?style=flat)](https://doi.org/10.17605/OSF.IO/8A3DR)
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 ## Use
 1. Pull the image:
 > docker pull registry.git.nilu.no/fact/data/fact_population:latest