Add initial GitHub Actions pages workflow

.github/workflows/pages.yml

@@ -0,0 +1,40 @@
+name: Deploy to GitHub Pages
+
+on:
+    push:
+        branches: ['trunk']
+    workflow_dispatch:
+
+permissions:
+    contents: read
+    pages: write
+    id-token: write
+
+concurrency:
+    group: 'pages-${{ github.ref }}'
+    cancel-in-progress: true
+
+jobs:
+    deploy:
+        environment:
+            name: github-pages
+            url: ${{ steps.deployment.outputs.page_url }}
+        runs-on: ubuntu-latest
+        steps:
+            - name: Checkout
+              uses: actions/checkout@v4
+            - name: Setup Go
+              uses: actions/setup-go@v5
+              with:
+                  go-version-file: 'go.mod'
+            - name: Build Website
+              run: go run .
+            - name: Setup Pages
+              uses: actions/configure-pages@v4
+            - name: Upload artifact
+              uses: actions/upload-pages-artifact@v3
+              with:
+                  path: 'public'
+            - name: Deploy to GitHub Pages
+              id: deployment
+              uses: actions/deploy-pages@v4