README.md: fix exbootimage help #100

	name: Test mkbootimage
	on: [push, pull_request]

	jobs:
	check-formatting:
	runs-on: ubuntu-20.04
	steps:
	- name: Install dependencies
	run: \|
	sudo apt-get install --yes clang-format-12
	clang-format-12 --version

	- name: Checkout
	uses: actions/checkout@v2

	- name: Run formatting check
	run: \|
	make format FMT=clang-format-12
	git diff --exit-code > formatting.log
	if [ $? -ne 0 ]; then
	echo The code formatting is not proper
	exit 1
	fi

	- name: Save diff
	uses: actions/upload-artifact@v2
	with:
	name: formatting
	path: formatting.log

	test-zynq-mkbootimage:
	runs-on: ubuntu-20.04
	steps:
	- name: Install dependencies
	run: \|
	sudo apt-get install --yes libelf-dev

	- name: Checkout
	uses: actions/checkout@v2

	- name: Build the project
	run: \|
	make
	test -f mkbootimage

	- name: Run integration tests
	run: make test

	- name: Save logs
	uses: actions/upload-artifact@v2
	with:
	name: results
	path: tests/results.log

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