Add GitHub pages deployment

Add a workflow that builds and deploys master. It is currently manual
while preparing to transition to the proper repo.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>

.github/workflows/gh-pages.yml

@@ -0,0 +1,50 @@
+name: Deploy to GitHub Pages
+
+on:
+  # push:
+  #   branches: ["master"]
+
+  # Allows you to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
+# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+        with:
+          submodules: recursive
+      - name: Setup Pages
+        uses: actions/configure-pages@v3
+      - name: Install depenencies
+        run: pip install -r requirements.txt
+      - name: Build website
+        run: make html
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: output
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2