Add a Github workflow that deploys the manual to Github Pages

.github/workflows/mdbook.yml

@@ -1,8 +1,9 @@
 name: Build the manual with mdBook
 
 on:
-  push:
-    branches: [ "master" ]
+  # This is done in mdbook_deploy.yml
+  # push:
+  #   branches: [ "master" ]
   pull_request:
     branches: [ "master" ]
 

.github/workflows/mdbook_deploy.yml

@@ -0,0 +1,49 @@
+name: Build the manual with mdBook and deploy it
+
+on:
+  push:
+    branches: [ "master" ]
+
+# 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:
+  deploy:
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Install mdBook
+        run: |
+          mkdir -p $HOME/.local/bin/
+          curl -sSL https://github.com/rust-lang/mdBook/releases/download/v0.4.40/mdbook-v0.4.40-x86_64-unknown-linux-gnu.tar.gz | tar -xz --directory=$HOME/.local/bin/
+
+      - name: Build the manual
+        run: |
+          cd res/manual
+          mdbook build
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v2
+        with:
+          path: './res/manual/book'
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v2