Add docker image badge

README.md

@@ -7,6 +7,7 @@
     <a href='http://artic.readthedocs.io/en/latest/?badge=latest'><img src='https://readthedocs.org/projects/artic/badge/?version=latest' alt='Documentation Status'></a>
     <a href="https://bioconda.github.io/recipes/artic/README.html"><img src="https://anaconda.org/bioconda/artic/badges/downloads.svg" alt="bioconda"></a>
     <a href="https://github.com/artic-network/fieldbioinformatics/blob/master/LICENSE"><img src="https://img.shields.io/badge/license-MIT-orange.svg" alt="License"></a>
+    <a href="https://github.com/artic-network/fieldbioinformatics/actions/workflows/docker-build-push.yml"><img src="https://github.com/artic-network/fieldbioinformatics/actions/workflows/docker-build-push.yml/badge.svg" alt="Docker Image"></a>
 </div>
 
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