[main] add initial Cockpit docs #5

	name: Check Trailing Spaces

	on:
	pull_request:
	branches:
	- main
	- ArduSub*
	- BlueOS*
	- Cockpit*
	- Companion*
	- QGroundControl*

	jobs:
	trailing-spaces-check:
	runs-on: ubuntu-latest

	steps:
	- name: Checkout Code
	uses: actions/checkout@v3

	- name: Check Trailing Spaces
	run: \|
	git fetch origin ${{ github.base_ref }}
	PR_FILES_CHANGED=$(git diff --name-only origin/${{ github.base_ref }})
	for FILE in $PR_FILES_CHANGED; do
	if [[ $FILE == *.md ]]; then
	echo "Checking file $FILE"
	git diff FETCH_HEAD..HEAD -- $FILE \| grep -P '^\+' \| grep -P '\s+$' && \
	echo "Trailing spaces found in $FILE" && exit 1
	fi
	done

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