feat: update landing page layout and content #139

	# Workflow derived from https://github.com/r-lib/actions/tree/v2/examples
	# Need help debugging build failures? Start at https://github.com/r-lib/actions#where-to-find-help
	on:
	issue_comment:
	types: [created]

	name: Commands

	jobs:
	reformat_markdown:
	if: ${{ github.event.issue.pull_request && (github.event.comment.author_association == 'MEMBER' \|\| github.event.comment.author_association == 'OWNER') && startsWith(github.event.comment.body, '/reformat_markdown') }}
	name: reformat_markdown
	runs-on: ubuntu-latest
	env:
	GITHUB_PAT: ${{ secrets.GITHUB_TOKEN }}
	steps:
	- uses: actions/checkout@v3

	- uses: r-lib/actions/pr-fetch@v2
	with:
	repo-token: ${{ secrets.GITHUB_TOKEN }}

	- uses: r-lib/actions/setup-pandoc@v2
	with:
	pandoc-version: '2.17.1' # The pandoc version to download (if necessary) and use.

	- name: Reformat Markdown files
	run: bash tools/pr/reformat-markdown.sh

	- name: Commit
	run: \|
	git config --local user.name "$GITHUB_ACTOR"
	git config --local user.email "[email protected]"
	git add .
	git commit -m 'Reformatted changed Markdown files to canonical format [skip ci]'

	- uses: r-lib/actions/pr-push@v2
	with:
	repo-token: ${{ secrets.GITHUB_TOKEN }}

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