Add GitHub Pages deployment workflow

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: Garth Pickell

.github/workflows/deploy-pages.yml

@@ -0,0 +1,47 @@
+name: Deploy GitHub Pages
+
+on:
+  push:
+    branches:
+      - master
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: true
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v4
+
+      - name: Set up Pages
+        uses: actions/configure-pages@v5
+
+      - name: Build site artifact from repository root
+        shell: bash
+        run: |
+          rm -rf _site
+          mkdir -p _site
+          git checkout-index -a -f --prefix=_site/
+          rm -rf _site/.github
+
+      - name: Upload Pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: _site
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4