debugging the release process

.github/workflows/ci.yml

@@ -9,8 +9,8 @@ jobs:
             run: sudo apt-get update && sudo apt-get install --no-install-recommends -y biber latexmk lmodern texlive-bibtex-extra texlive-latex-extra texlive-science
           - name: Checkout
             uses: actions/checkout@v2
-          # - name: Change to python edition
-          #   run: sed -i 's|\\def\\edition{0}|\\def\\edition{1}|g' book.tex
+          - name: Keep Racket edition
+            run: sed -i 's|\\def\\edition{0}|\\def\\edition{0}|g' book.tex
           - name: Build PDF
             run: make
           - name: Release