install geopandas, remove make docs

Author: ehinman

.github/workflows/sphinx-docs.yml

@@ -18,10 +18,10 @@ jobs:
         shell: bash -l {0}
         run: |
           python -m pip install --upgrade pip
+          pip install geopandas
           pip install .[doc]
           ipython kernel install --name "python3" --user
           sudo apt update -y && sudo apt install -y latexmk texlive-latex-recommended texlive-latex-extra texlive-fonts-recommended dvipng pandoc
-          (cd docs && make docs)
           (cd docs && make html)
       - name: Debug
         run: |