docs: add versioning policy #15

	name: Build documentation

	on:
	push:
	branches: [main]
	pull_request: {}
	workflow_dispatch: {}

	jobs:
	build-docs:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3

	- name: Install docfx
	run: \|
	sudo apt-get -y update
	sudo apt-get -y install dotnet7
	dotnet tool update -g docfx

	- name: Build documentation
	run: \|
	docfx docfx~/docfx.json

	- uses: actions/upload-artifact@v3
	if: always()
	with:
	name: docs
	path: docfx~/_site

	publish-docs:
	if: github.ref == 'refs/heads/main' && github.repository == 'bdunderscore/ndmf'
	permissions:
	contents: read
	pages: write
	id-token: write
	runs-on: ubuntu-latest
	concurrency:
	group: docs-publish
	cancel-in-progress: true
	needs: build-docs
	steps:
	- uses: actions/download-artifact@v3
	with:
	name: docs
	path: docs

	- name: Setup Pages
	uses: actions/configure-pages@v3

	- name: Upload artifact
	uses: actions/upload-pages-artifact@v2
	with:
	path: docs

	- name: Deploy to GitHub Pages
	id: deployment
	uses: actions/deploy-pages@v2

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