feat(01-building-blocks): add README #3

	# See 01-building-blocks/README.md for more information
	# about the building blocks of GitHub Actions

	name: 01 - Building Blocks

	on: push

	jobs:
	echo-hello:
	runs-on: ubuntu-latest
	steps:
	- name: Say hello
	run: echo "Hello, world!"
	echo-goodbye:
	runs-on: ubuntu-latest
	steps:
	- name: Successful step
	run: \|
	echo "I will succeed"
	exit 0
	- name: Say goodbye
	run: echo "Goodbye!"

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