Update ggplot2 4.0.0 (#47) #4

	# Workflow derived from https://github.com/r-lib/actions/tree/master/examples
	# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
	on:
	push:
	paths: ["README.Rmd"]

	name: Render-README

	jobs:
	render-readme:
	runs-on: ubuntu-latest
	env:
	GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
	steps:
	- name: Checkout repo
	uses: actions/checkout@v2
	with:
	fetch-depth: 0

	- uses: r-lib/actions/setup-pandoc@v2

	- uses: r-lib/actions/setup-r@v2

	- uses: r-lib/actions/setup-renv@v2

	- name: Install rmarkdown
	run: Rscript -e 'install.packages("rmarkdown")'

	- name: Render README files
	run: Rscript -e 'rmarkdown::render("README.Rmd")'

	- name: Commit README
	run: \|
	git config --local user.name "$GITHUB_ACTOR"
	git config --local user.email "$GITHUB_ACTOR@users.noreply.github.com"
	git add README.* man/figures/README-*
	git commit -m "Re-build README.md" \|\| echo "No changes to commit"
	git push origin \|\| echo "No changes to commit"

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