Updated Pipeline name

Pipeline renmaed to use book.tex

.github/workflows/publish.yaml

@@ -22,7 +22,7 @@ jobs:
           path: ~/.cache/Tectonic
           key: ${{ runner.os }}-tectonic-
       - name: Compile latex
-        run: ./tectonic main.tex
+        run: ./tectonic book.tex
       - name: Rename PDF
         run: mv main.pdf ${{ steps.extract_branch.outputs.branch }}.pdf
       - name: Upload