consistent format

.github/workflows/docker.yml

@@ -10,17 +10,16 @@ jobs:
   build-and-test-image:
     runs-on: ubuntu-latest
     steps:
-      -
+      - name: Checkout
-        name: Checkout
         uses: actions/checkout@v3
-      -
+
-        name: Set up QEMU
+      - name: Set up QEMU
         uses: docker/setup-qemu-action@v2
-      -
+
-        name: Set up Docker Buildx
+      - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
-      -
+
-        name: Build and push
+      - name: Build and push
         uses: docker/build-push-action@v3
         with:
           context: .
@@ -28,7 +27,7 @@ jobs:
           push: false
           load: true
           tags: rails-on-docker:latest
-      -
+
-        name: Inspect
+      - name: Inspect
         run: |
           docker image inspect rails-on-docker:latest