Pull request #91: Update GH Workflow documentation

Merge in HYP/hypernetx from develop to master

* commit 'f2a248954c825ce253b7040500e0416e2f155b65':
  Update GH Workflow documentation

.github/workflows/documentation.yml

@@ -11,7 +11,6 @@ jobs:
       - name: Install dependencies
         run: |
           pip install sphinx sphinx_rtd_theme
-          pip install -r docs/requirements.txt
           pip install .'[documentation]'
       - name: Sphinx build
         run: |