Update gh_pages_readme.yml #4

	name: gh_pages_readme

	on:
	workflow_dispatch:
	push:
	branches:
	- "gh-pages"

	jobs:
	gh_pages_readme:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	with:
	fetch-depth: 0
	ref: gh-pages
	# Delete README.md
	- name: Delete README.md
	run: rm -f README.md
	# get list of branches and generate links to each branch's subfolder in the README.md file
	- name: Generate README.md
	run: \|
	echo "## Flutter Branch Web Previews" >> README.md
	echo "" >> README.md
	git branch -r \| grep -v '\->' \| grep -v 'origin/gh-pages' \| while read remote; do
	if [ -d "${remote#origin/}" ]; then
	echo "- [${remote#origin/}](./${remote#origin/}/)" >> README.md
	fi
	done
	- name: Commit and push if changed
	run: \|
	git config --global user.name 'GitHub Actions'
	git config --global user.email github-actions@github.com
	git add README.md
	git diff-index --quiet HEAD \|\| git commit -m 'Update README.md'
	git push

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