adds docker build with buildx platforms

.github/workflows/docker-hub.yml

@@ -0,0 +1,33 @@
+name: Docker Build and Push to Docker Hub
+
+on:
+  push:
+    branches: [main]
+
+jobs:
+  build-and-push:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Set up QEMU
+        uses: docker/setup-qemu-action@v3
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v3
+
+      - name: Docker Login
+        uses: docker/[email protected]
+        with:
+          username: ${{ secrets.DOCKER_HUB_USERNAME }}
+          password: ${{ secrets.DOCKER_HUB_ACCESS_TOKEN }}
+
+      - name: Build and push Docker images
+        uses: docker/build-push-action@v5
+        with:
+          context: .
+          push: true
+          tags: ${{ secrets.DOCKER_HUB_USERNAME }}/rstudio-m-macs:latest
+          platforms: linux/amd64,linux/arm64

.gitignore

@@ -1 +1 @@
-.github/
+# .github/