Created the release.yml workflow

.github/workflows/release.yml

@@ -0,0 +1,23 @@
+name: Docker Build and Artifact Upload
+
+on:
+  push:
+    branches: [ main ]
+
+jobs:
+  build-and-upload:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v2
+
+      - name: Build Docker Image
+        run: |
+          docker build -t backend .
+        working-directory: /
+
+      - name: Save Docker Image as Artifact
+        uses: actions/upload-artifact@v2
+        with:
+          name: backend
+          path: /