Supports Raspberry Pi using arm32v7 or arm64 (#92)

* Supports Raspberry Pi using arm32v7

* Add arm64

.github/workflows/docker-publish.yml

@@ -31,6 +31,12 @@ jobs:
         with:
           setAllVars: true        
 
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v2
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v2
+
       # Login against a Docker registry except on PR
       # https://github.com/docker/login-action
       - name: Log into registry docker hub
@@ -64,9 +70,10 @@ jobs:
       # Build and push Docker image with Buildx (don't push on PR)
       # https://github.com/docker/build-push-action
       - name: Build and push Docker image
-        uses: docker/build-push-action@v2
+        uses: docker/build-push-action@v3
         with:
           context: .
+          platforms: linux/amd64,linux/arm64,linux/arm/v7
           build-args: VER=${{ env.NBGV_SimpleVersion }}
           push: ${{ github.event_name != 'pull_request' }}
           tags: ${{ steps.meta.outputs.tags }}