Deploy GitHub pages using GHA workflow

.github/workflows/deploy.yml

@@ -0,0 +1,33 @@
+name: Build and Deploy
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build-and-deploy:
+    runs-on: ubuntu-latest
+    if: github.repository == 'actix/actix-website'
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          persist-credentials: false # This is needed to deploy on checkout@v2
+
+      - name: Setup Hugo
+        uses: peaceiris/actions-hugo@v2
+        with:
+          hugo-version: '0.74.2'
+
+      - name: Build
+        run: hugo --minify
+
+      - name: Deploy to GitHub Pages
+        uses: JamesIves/github-pages-deploy-action@3.5.8
+        with:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          ACCESS_TOKEN: ${{ secrets.ACCESS_TOKEN }}
+          BRANCH: master
+          FOLDER: public
+          REPOSITORY_NAME: actix/actix.github.io