Build docs on push

without deploying, simply to test that the build process has not been broken by a commit

.github/workflows/build.yml

@@ -0,0 +1,19 @@
+name: Deploy
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: actions/setup-python@v5
+        with:
+          python-version: 3.x
+
+      - name: Install dependencies and build
+        run: |
+          python3 -m pip install -U poetry
+          python3 -m poetry install
+          python3 -m poetry run mkdocs build