ADD: create workflow file (#30)

Author: AGiljanovic

.github/workflows/cd-workflow.yaml

@@ -0,0 +1,13 @@
+
+name: Deploy backstage
+on:
+  workflow_dispatch:
+
+
+jobs:
+  placeholder-job:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: hello world
+        run: echo "Hello World"