add docs test workflow

.github/workflows/test-pages.yml

@@ -0,0 +1,31 @@
+name: Sphinx docs to gh-pages
+
+on:
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build-docs:
+    runs-on: ubuntu-latest
+    name: Sphinx docs to gh-pages
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.10"
+          cache: "pip"
+          cache-dependency-path: pyproject.toml
+
+      - name: Setup environment
+        run: |
+            python -m pip install --upgrade pip
+            pip install ".[tests,dev,docs]"
+
+      - name: docs
+        run: |
+          jb build docs