fix: incorrect yaml in documentation

docs/advanced/dockerhub-desc.md

@@ -16,30 +16,24 @@ jobs:
   docker:
     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: Login to Docker Hub
+      - name: Login to Docker Hub
         uses: docker/login-action@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_TOKEN }}
-      -
-        name: Build and push
+      - name: Build and push
         uses: docker/build-push-action@v3
         with:
           context: .
           push: true
           tags: user/app:latest
-      -
-        name: Update repo description
+      - name: Update repo description
         uses: peter-evans/dockerhub-description@v2
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}