Merge pull request #20 from PdIPS/TimRoith-patch-1

Update Sphinx.yml

.github/workflows/Sphinx.yml

@@ -7,8 +7,8 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
-      - uses: docker://pandoc/core:2.9
       - name: Install dependencies
+        run: sudo apt-get install pandoc
         run: |
           pip install sphinx sphinx_rtd_theme
           pip install sphinx_design