added GH action for generating docs on release (#120)

.github/workflows/generate_docs.yml

@@ -0,0 +1,35 @@
+name: Sphinx docs to gh-pages
+on:
+  release:
+    types: [released]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+jobs:
+  sphinx_docs_to_gh-pages:
+    runs-on: ubuntu-latest
+    name: Sphinx docs to gh-pages
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Python 3.9
+        uses: actions/setup-python@v5
+        with:
+          python-version: 3.9
+      - name: Installing the library
+        shell: bash -l {0}
+        run: |
+          pip install https://github.com/glencoesoftware/zeroc-ice-py-linux-x86_64/releases/download/20240202/zeroc_ice-3.6.5-cp39-cp39-manylinux_2_28_x86_64.whl
+          python setup.py install
+          pip install sphinx
+      - name: Running Sphinx
+        shell: bash -l {0}
+        run: |
+          cd docs/sphinx
+          sphinx-apidoc -f -o source ../../ezomero test
+          sphinx-build -b html source ../
+      - name: Deploy to pages
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          folder: docs
+          branch: "documentation"