list image digests

.github/workflows/docker.yaml

@@ -55,12 +55,12 @@ jobs:
 
       - name: Load docker image
         # Because of limitations in Docker buildx (which underlies the build-and-push-to-ghcr action),
-        # we can't both push the Docker image and have it available locally in the same build action.
+        # we can't both push the Docker image and make it available locally in the same build action.
         # So we have to go pull it from the registry before using it here.
         # See https://github.com/docker/build-push-action/issues/906#issuecomment-1686036330
         run: |
           docker pull ghcr.io/${{ github.repository }}@${{ steps.build.outputs.imageid }}
-          docker images
+          docker images --digests
 
       - name: Set up Python
         uses: actions/setup-python@v4