Add GH workflow for documentation, fix ci script

.github/workflows/documentation.yml

@@ -0,0 +1,25 @@
+name: Docs
+on: [push, pull_request, workflow_dispatch]
+permissions:
+    contents: write
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v3
+      - name: Install dependencies
+        run: |
+          pip install sphinx sphinx_rtd_theme
+          pip install -r docs/requirements.txt
+          pip install .'[documentation]'
+      - name: Sphinx build
+        run: |
+          sphinx-build docs/source _build
+      - name: Deploy
+        uses: peaceiris/actions-gh-pages@v3
+        with:
+          publish_branch: gh-pages
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: _build/
+          force_orphan: true

.pre-commit-config.yaml

@@ -13,8 +13,6 @@ repos:
   - id: trailing-whitespace
     exclude: ^(docs/|hypernetx.egg-info/|setup.cfg)
   - id: check-merge-conflict
-  - id: no-commit-to-branch
-    args: ['--branch', 'master'] # blocks master commits.  To bypass do git commit --allow-empty
 
 -   repo: https://github.com/psf/black
     rev: 22.6.0