Adding labels to the container image

Author: rgrizzell

.github/workflows/docker-build.yml

@@ -52,7 +52,7 @@ jobs:
           context: .
           platforms: ${{ matrix.platform }}
           labels: ${{ steps.meta.outputs.labels }}
-          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true
+          outputs: type=image,name=${{ env.REGISTRY_IMAGE }},push-by-digest=true,name-canonical=true,push=true,annotation-index.org.opencontainers.image.description=CircuitPython for Linux,annotation-index.org.opencontainers.image.license=MIT
 
       - name: Export digest
         run: |
@@ -104,4 +104,4 @@ jobs:
 
       - name: Inspect image
         run: |
-          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}
+          docker buildx imagetools inspect ${{ env.REGISTRY_IMAGE }}:${{ steps.meta.outputs.version }}