update site & improve document #40

	name: docs

	on:
	push:
	branches:
	- main

	jobs:
	pkgdown:
	runs-on: ubuntu-latest

	env:
	R_REMOTES_NO_ERRORS_FROM_WARNINGS: true
	GITHUB_PAT: ${{ secrets.GITHUB_TOKEN}}

	steps:

	- uses: actions/checkout@v2

	- uses: r-lib/actions/setup-pandoc@v1

	- uses: r-lib/actions/setup-r@v1
	with:
	use-public-rspm: true

	- name: Ubuntu config
	run: \|
	sudo apt-get install libcurl4-openssl-dev
	sudo fallocate -l 8g /mnt/for_fork.swap
	sudo chmod 600 /mnt/for_fork.swap
	sudo mkswap /mnt/for_fork.swap
	sudo swapon /mnt/for_fork.swap

	- name: Install dependencies
	run: \|
	install.packages(c("remotes","rcmdcheck", "knitr"), repos = "https://cloud.r-project.org")
	shell: Rscript {0}

	- uses: r-lib/actions/setup-r-dependencies@v1
	with:
	extra-packages: pkgdown
	needs: website

	- name: Deploy package
	run: \|
	git config --local user.name "$GITHUB_ACTOR"
	git config --local user.email "[email protected]"
	Rscript -e 'pkgdown::deploy_to_branch(new_process = FALSE)'

	- name: Track file
	run: \|
	git add .github/r-depends.rds
	git commit -m "track file"

	- name: Auto commit
	uses: stefanzweifel/git-auto-commit-action@v4
	with:
	branch: gh-pages
	push_options: --force

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