add demo files #1

	name: 02-2. Dependencies

	on:
	workflow_dispatch:
	push:
	branches:
	- main
	jobs:
	initial:
	runs-on: ubuntu-latest
	steps:
	- run: echo "This job will be run first."
	fanout1:
	runs-on: ubuntu-latest
	needs: initial
	steps:
	- run: echo "This job will run after the initial job, in parallel with fanout2."
	fanout2:
	runs-on: ubuntu-latest
	needs: initial
	steps:
	- run: echo "This job will run after the initial job, in parallel with fanout1."
	fanout3:
	runs-on: ubuntu-latest
	needs: fanout1
	steps:
	- run: echo "This job will run after the initial job, in parallel with fanout2."
	fanin:
	runs-on: ubuntu-latest
	needs: [fanout1, fanout2]
	steps:
	- run: echo "This job will run after fanout1 and fanout2 have finished."
	build:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	configuration: [debug, release]
	steps:
	- run: echo "This job builds the cofiguration ${{ matrix.configuration }}."
	test:
	runs-on: ubuntu-latest
	needs: build
	steps:
	- run: echo "This job will be run after the build job."
	ring01:
	runs-on: ubuntu-latest
	needs: test
	steps:
	- run: echo "This job will be run after the test job."
	ring02:
	runs-on: macos-latest
	needs: test
	steps:
	- run: echo "This job will be run after the test job."
	ring03:
	runs-on: ubuntu-latest
	needs: test
	steps:
	- run: echo "This job will be run after the test job."
	ring04:
	runs-on: ubuntu-latest
	needs: [ring01,ring02,ring03]
	steps:
	- run: echo "This job will be run after the ring01,ring02,ring03 jobs."
	prod:
	runs-on: ubuntu-latest
	needs: [ring04]
	steps:
	- run: echo "This job will be run after the ring04 job."

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