add git workflow

.github/workflows/build-and-deploy.yml

@@ -0,0 +1,49 @@
+name: Build and Deploy
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    container:
+      image: registry.gitlab.com/pages/hugo/hugo_extended:latest
+
+    env:
+      GIT_SUBMODULE_STRATEGY: recursive
+      HUGO_ENV: production
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: Install dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y git
+
+      - name: Build
+        run: hugo
+
+  deploy:
+    runs-on: ubuntu-latest
+    needs: build
+    if: github.ref == 'refs/heads/master'
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Deploy to GitHub Pages
+        run: hugo
+
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: public
+          path: public