Remove use of non-existent function `flatten` (#121) #45

	name: Documentation

	on:
	push:
	branches:
	- master
	tags: '*'

	concurrency:
	# group by workflow and ref; the last slightly strange component ensures that for pull
	# requests, we limit to 1 concurrent job, but for the master branch we don't
	group: ${{ github.workflow }}-${{ github.ref }}-${{ github.ref != 'refs/heads/master' \|\| github.run_number }}
	# Cancel intermediate builds, but only if it is a pull request build.
	cancel-in-progress: ${{ startsWith(github.ref, 'refs/pull/') }}

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

	- name: "Set up Julia"
	uses: julia-actions/setup-julia@latest
	with:
	version: '1.8'

	- name: Restore cache
	uses: julia-actions/cache@v1
	with:
	cache-name: 'docs-1.8'

	- name: Build package
	uses: julia-actions/julia-buildpkg@latest

	- name: Install dependencies
	run: julia --project=docs/ --color=yes -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'

	- name: Build and deploy
	env:
	GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }} # For authentication with GitHub Actions token
	DOCUMENTER_KEY: ${{ secrets.DOCUMENTER_KEY }} # For authentication with SSH deploy key
	run: julia --project=docs/ --color=yes docs/make.jl

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