Merge pull request #19 from PdIPS/TimRoith-patch-1

Update Sphinx.yml

.github/workflows/Sphinx.yml

@@ -7,14 +7,14 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
+      - uses: docker://pandoc/core:2.9
       - name: Install dependencies
         run: |
           pip install sphinx sphinx_rtd_theme
           pip install sphinx_design
           pip install nbsphinx
           pip install pydata-sphinx-theme
           pip install -r requirements.txt
-          conda install pandoc
       - name: Sphinx build
         run: |
           sphinx-build docs _build