Setup buildx

.github/workflows/docker.yml

@@ -11,11 +11,15 @@ jobs:
       - name: 'Checkout GitHub Action'
         uses: actions/checkout@v2
 
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v1
+
       - name: Login to DockerHub
         uses: docker/login-action@v1 
         with:
           username: ${{ secrets.REGISTRY_USERNAME }}
           password: ${{ secrets.REGISTRY_PASSWORD }}
+
       - name: Build and push docker
         uses: docker/build-push-action@v2
         with: