Add label to dockerfile to connect repo to package

Author: BitProcessor

Dockerfile

@@ -2,6 +2,8 @@ FROM plugins/ecr:latest as drone-ecr
 
 FROM thegeeklab/drone-docker-buildx:latest
 
+LABEL org.opencontainers.image.source https://github.com/bitprocessor/drone-docker-buildx-ecr
+
 COPY --from=drone-ecr /bin/drone-ecr /bin
 RUN ln -s /bin/drone-docker-buildx /bin/drone-docker