feat: add Sphinx as a documentation tool

.github/workflows/documentation.yaml

@@ -0,0 +1,33 @@
+name: documentation
+
+on:
+  push:
+    branches: [main]
+  workflow_dispatch:
+
+permissions:
+  contents: write
+
+jobs:
+  docs:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - uses: actions/setup-python@v5
+      - name: Install dependencies
+        run: |
+          pip install sphinx sphinx_rtd_theme myst_parser
+      - name: Sphinx build
+        run: |
+          sphinx-build . _build/html
+      - name: Deploy to GitHub Pages
+        uses: peaceiris/actions-gh-pages@v3
+        if: |
+          github.event_name == 'push' &&
+          github.ref == 'refs/heads/main' &&
+          startsWith(github.event.head_commit.message, 'Merge pull request')
+        with:
+          publish_branch: gh-pages
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          publish_dir: _build/html
+          force_orphan: true

Makefile

@@ -0,0 +1,20 @@
+# Minimal makefile for Sphinx documentation
+#
+
+# You can set these variables from the command line, and also
+# from the environment for the first two.
+SPHINXOPTS    ?=
+SPHINXBUILD   ?= sphinx-build
+SOURCEDIR     = .
+BUILDDIR      = _build
+
+# Put it first so that "make" without argument is like "make help".
+help:
+	@$(SPHINXBUILD) -M help "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)
+
+.PHONY: help Makefile
+
+# Catch-all target: route all unknown targets to Sphinx using the new
+# "make mode" option.  $(O) is meant as a shortcut for $(SPHINXOPTS).
+%: Makefile
+	@$(SPHINXBUILD) -M $@ "$(SOURCEDIR)" "$(BUILDDIR)" $(SPHINXOPTS) $(O)

_build/html/.buildinfo

@@ -0,0 +1,4 @@
+# Sphinx build info version 1
+# This file records the configuration used when building these files. When it is not found, a full rebuild will be done.
+config: d1cef23647b2c464ac654a4823372a3c
+tags: 645f666f9bcd5a90fca523b33c5a78b7

_build/html/_sources/index.rst.txt

@@ -0,0 +1,17 @@
+.. UniversalPython documentation master file, created by
+   sphinx-quickstart on Sun Oct 19 17:40:20 2025.
+   You can adapt this file completely to your liking, but it should at least
+   contain the root `toctree` directive.
+
+UniversalPython documentation
+=============================
+
+Add your content using ``reStructuredText`` syntax. See the
+`reStructuredText <https://www.sphinx-doc.org/en/master/usage/restructuredtext/index.html>`_
+documentation for details.
+
+
+.. toctree::
+   :maxdepth: 2
+   :caption: Contents:
+