Add GitHub CI/CD config

.github/workflows/deploy.yml

@@ -0,0 +1,63 @@
+#file: noinspection YAMLSchemaValidation
+name: Deploy
+
+on:
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    name: Build
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repo
+        uses: actions/checkout@v3
+
+      - name: Setup Node
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          cache: 'yarn'
+
+      - name: Run install
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: install --frozen-lockfile
+
+      - name: Run ESLint
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: run lint
+
+      - name: Build production bundle
+        uses: borales/actions-yarn@v4
+        with:
+          cmd: build
+
+      - name: Upload production-ready build files
+        uses: actions/upload-artifact@v3
+        with:
+          name: production-files
+          path: ./dist
+
+  deploy:
+    name: Deploy
+    needs: build
+    runs-on: ubuntu-latest
+    if: github.ref == 'refs/heads/master'
+
+    steps:
+      - name: Download artifact
+        uses: actions/download-artifact@v3
+        with:
+          name: production-files
+          path: ./dist
+
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: ./dist
+          cname: openfest-schedule.initlab.org