Add GitHub actions to publish gh_pages

.github/workflows/test-deploy.yml

@@ -0,0 +1,22 @@
+name: Test deployment
+
+on:
+  pull_request:
+    branches:
+      - main
+
+jobs:
+  test-deploy:
+    name: Test deployment
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v3
+        with:
+          node-version: 18
+          cache: yarn
+
+      - name: Install dependencies
+        run: yarn install --frozen-lockfile
+      - name: Test build website
+        run: yarn build