more debug

Author: marcoow

.github/workflows/ci.yml

@@ -36,6 +36,7 @@ jobs:
           sed -i 's/CoreSansA45It.ttf/Open Sans/g' book/book.toml
           sed -i 's/CoreSansA65.ttf/Open Sans/g' book/book.toml
           sed -i 's/CoreSansA65It.ttf/Open Sans/g' book/book.toml
+          cat book/book.toml
       - uses: actions-rust-lang/setup-rust-toolchain@v1
       - name: Install exercise plugin
         run: cargo install --path helpers/mdbook-exercise-linker