added build workflow

.github/workflows/build.yml

@@ -0,0 +1,20 @@
+name: Build and push Docker images
+on:
+  push:
+    branches:
+      - release
+jobs:
+  deploy:
+    runs-on: alpine-latest
+    steps:
+      - name: Login to GitHub Container Registry
+        uses: docker/login-action@v3
+        with:
+          registry: ghcr.io
+          username: ${{ github.repository_owner }}
+          password: ${{ secrets.GITHUB_TOKEN }}
+      - name: Build
+        uses: docker/build-push-action@v5.3.0
+        with:
+          push: true
+          tags: ghcr.io/zphrs/ucsc-menu

.gitignore

@@ -1,4 +1,4 @@
 /target
 /.vscode
 install
-.github
+secrets