Pr preview2 (#69)

.github/workflows/edge_ghpage.yml

@@ -24,3 +24,4 @@ jobs:
         with:
           branch: gh-pages
           folder: build
+          clean-exclude: pr-preview

.github/workflows/pr-preview-ghpages.yaml

@@ -0,0 +1,27 @@
+name: Deploy PR previews
+concurrency: preview-${{ github.ref }}
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - closed
+jobs:
+  deploy-preview:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-node@v4
+        with:
+          node-version: "18"
+      - run: |
+          yarn install
+          yarn build
+        if: github.event.action != 'closed'
+      - uses: rossjrw/pr-preview-action@v1
+        with:
+          source-dir: ./build/
+          preview-branch: gh-pages
+          umbrella-dir: pr-preview
+          action: auto