Update .github/workflows/check_notebooks_lowercase.yml #12

	name: Check notebook names are lowercase

	on: [push]

	jobs:
	check-lowercase:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout code
	uses: actions/checkout@v2

	- name: Check filenames in 'notebooks/'
	run: \|
	# Change to the directory where you want to check filenames
	cd notebooks
	# Find files with uppercase characters in their names
	files=$(find . -type f \| grep '[A-Z]' \|\| true)
	if [ -n "$files" ]; then
	echo "The following files are not lowercase:"
	echo "$files"
	exit 1
	else
	echo "All filenames are lowercase."
	exit 0
	fi

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