add some tips

.github/workflows/release.yml

@@ -0,0 +1,63 @@
+name: Release
+
+on:
+  push:
+    tags:
+      - 'v*'
+
+permissions:
+  contents: write
+
+jobs:
+  release:
+    name: Build & Release
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        goos: [linux]
+        goarch: [amd64, arm64]
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: '1.21'
+          cache-dependency-path: server/go.sum
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '18'
+          cache: 'npm'
+          cache-dependency-path: web/package-lock.json
+
+      - name: Build frontend
+        working-directory: web
+        run: |
+          npm ci
+          npm run build
+
+      - name: Build backend
+        working-directory: server
+        env:
+          GOOS: ${{ matrix.goos }}
+          GOARCH: ${{ matrix.goarch }}
+          CGO_ENABLED: 1
+        run: |
+          go build -ldflags "-s -w -X main.version=${{ github.ref_name }}" -o ../backupx-${{ matrix.goos }}-${{ matrix.goarch }} ./cmd/backupx
+
+      - name: Package release
+        run: |
+          mkdir -p release
+          cp backupx-${{ matrix.goos }}-${{ matrix.goarch }} release/
+          cp -r web/dist release/web
+          cp server/config.example.yaml release/
+          cp deploy/install.sh release/ 2>/dev/null || true
+          cd release && tar czf ../backupx-${{ github.ref_name }}-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz .
+
+      - name: Upload Release Asset
+        uses: softprops/action-gh-release@v2
+        with:
+          files: backupx-${{ github.ref_name }}-${{ matrix.goos }}-${{ matrix.goarch }}.tar.gz
+          generate_release_notes: true