add readme

.github/workflows/build.yml

@@ -0,0 +1,28 @@
+name: Build image
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build-image:
+    runs-on: ubuntu-latest
+    permissions:
+      packages: write
+      contents: read
+    steps:
+      - name: Check out repository code
+        uses: actions/checkout@v4
+      - name: Login to Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.actor }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build Image
+        uses: docker/build-push-action@v5
+        with:
+          file: Containerfile
+          context: .
+          push: true
+          tags: git.secretmine.de/secretminede/couplequestions:latest