gh-188: add docstrings to all functions and tidy docs #260

	---
	name: Test examples

	on:
	push:
	paths:
	- glass/**
	branches:
	- main
	pull_request:
	paths:
	- glass/**
	# ensure the draft PRs are tested when ready
	types:
	- opened
	- ready_for_review
	- reopened
	- synchronize

	concurrency:
	# Skip intermediate builds: always.
	# Cancel intermediate builds: only if it is a pull request build.
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

	env:
	# The "FORCE_COLOR" variable, when set to 1,
	# tells Nox to colorize itself.
	FORCE_COLOR: "1"

	jobs:
	test-examples:
	name: Test examples
	if: github.event.pull_request.draft == false
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- uses: actions/setup-python@v5
	with:
	python-version: 3.x
	cache: pip
	- name: Install nox
	run: pip install nox
	- name: Run examples
	run: nox -s examples

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