Update CONTRIBUTING.md

[montyly]

Based on

medusa/.github/workflows/ci.yml

Lines 74 to 108 in f58c60a

	lint:
	runs-on: ubuntu-latest
	timeout-minutes: 10
	steps:
	- uses: actions/checkout@v3
	- uses: actions/setup-go@v4
	with:
	go-version: "^1.18.1"
	- name: Actionlint
	run: |
	go install github.com/rhysd/actionlint/cmd/actionlint@latest
	actionlint
	- name: Prettier
	run: |
	npm install -g prettier
	prettier --check '**.json' '**/*.md' '**/*.yml' '!(pkg)'
	- name: Markdown link check
	run: |
	npm install -g markdown-link-check@3.10.3
	markdown-link-check --config .github/workflows/resources/markdown_link_check.json ./*.md
	- name: Format
	run: |
	go fmt ./...
	git diff --exit-code
	- name: Lint
	run: |
	go install github.com/golangci/golangci-lint/cmd/golangci-lint@latest
	golangci-lint run --timeout 5m0s