Run exerciser as mdbook renderer.

.github/workflows/install-mdbook/action.yml

@@ -18,3 +18,7 @@ runs:
     - name: Install mdbook-i18n-helpers
       run: cargo install mdbook-i18n-helpers --locked --version 0.1.0
       shell: bash
+
+    - name: Install exerciser
+      run: cargo install --path mdbook-exerciser --locked
+      shell: bash

.github/workflows/publish.yml

@@ -50,13 +50,16 @@ jobs:
               echo "::endgroup::"
           done
 
+      - name: Zip exercise templates
+        run: cd book/exerciser && zip --recurse-paths ../html/exercises.zip exercise-templates/
+
       - name: Setup Pages
         uses: actions/configure-pages@v2
 
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v1
         with:
-          path: book
+          path: book/html
 
       - name: Deploy to GitHub Pages
         id: deployment