checkout theme

Author: Xavier Denis

.github/workflows/book.yml

@@ -12,6 +12,8 @@ jobs:
       ZOLA_VERSION: 0.16.0
     steps:
     - uses: actions/checkout@v3
+      with:
+        submodules: recursive
     - name: Install Zola
       run: |
         curl -sL https://github.com/getzola/zola/releases/download/v${ZOLA_VERSION}/zola-v${ZOLA_VERSION}-x86_64-unknown-linux-gnu.tar.gz | tar xz -C /usr/local/bin