Add sphinxcontrib-bibtex (#99)

Author: kafitzgerald

.github/workflows/build.yml

@@ -60,7 +60,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
-          pip install sphinx-book-theme myst-nb sphinx-design nbsphinx pandas
+          pip install sphinx-book-theme myst-nb sphinx-design nbsphinx sphinxcontrib-bibtex pandas
 
       - name: make html
         run: |