Enhance demo workflow by adding step names for clarity and installing generated files

.forgejo/workflows/demo.yaml

@@ -6,10 +6,13 @@ jobs:
   test:
     runs-on: self-hosted
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout repository
+        uses: actions/checkout@v4
       - name: Initialize virtual environment
         run: /usr/bin/python -m venv .env
       - name: Install dependencies
         run: ./.env/bin/pip install mystmd
       - name: Build static HTML
-        run: ./.env/bin/myst build --html
+        run: ./.env/bin/myst build --html
+      - name: Install generated files
+        run: cp -r _build/html /data/srv/fogejo-runner/cours4.0

myst.yml

@@ -25,4 +25,4 @@ site:
     favicon: logo.svg
     logo: logo.svg
     folders: true
-  hide_footer_links: true
+    hide_footer_links: true