Add beta deploy

.github/workflows/deploy-beta.yaml

@@ -0,0 +1,33 @@
+name: Deploy
+
+on:
+  push:
+    branches:
+      - beta
+
+jobs:
+  deploy:
+    name: Build and deploy
+    runs-on: ubuntu-latest
+    environment: deploy
+
+    steps:
+      # Checks out a copy of your repository.
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      # Builds code using bazelisk and copies the site folder out of the bazel symlinked dir.
+      - name: Build the site
+        uses: "docker://mattinsler/bazelisk:latest"
+        with:
+          args: bash -c "bazel build site/... && cp -r --dereference bazel-bin/site ./deploy"
+
+      # Deploy the site to Cloudflare.
+      - name: Publish
+        uses: cloudflare/pages-action@1
+        with:
+          apiToken: ${{ secrets.CLOUDFLARE_API_TOKEN }}
+          accountId: 4aa13cc00192d0927df8194260cb2ce8
+          projectName: asciiflow-beta
+          directory: ./deploy
+          gitHubToken: ${{ secrets.GITHUB_TOKEN }}