outsource doc and fix some nits #18

	name: CI

	on: [
	push,
	pull_request
	]

	env:
	GO_VERSION: "1.21"

	permissions:
	contents: read

	jobs:
	typos-check:
	name: spell-typos-check
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Actions Repository
	uses: actions/checkout@v3
	- name: Check spelling with custom config file
	uses: crate-ci/[email protected]

	lint:
	name: lint
	runs-on: ubuntu-latest
	steps:
	- name: Checkout sources
	uses: actions/checkout@v3

	- name: Setup Go
	uses: actions/setup-go@v3
	with:
	go-version: ${{ env.GO_VERSION }}

	- name: golangci-lint
	uses: golangci/golangci-lint-action@v3
	with:
	version: v1.54
	# '-v' flag is required to show the output of golangci-lint.
	args: -v

	unit-test:
	name: coverage-test
	runs-on: ubuntu-latest
	needs: [ lint ]
	steps:
	- name: Checkout sources
	uses: actions/checkout@v3

	- name: Setup Go
	uses: actions/setup-go@v3
	with:
	go-version: ${{ env.GO_VERSION }}

	- name: Unit test
	run: \|
	make coverage

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v3
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	fail_ci_if_error: true
	files: ./coverage.xml
	name: codecov-gtctl
	verbose: true
	e2e:
	name: e2e
	runs-on: ubuntu-latest
	needs: [ lint ]
	steps:
	- name: Checkout sources
	uses: actions/checkout@v3

	- name: Setup Go
	uses: actions/setup-go@v3
	with:
	go-version: ${{ env.GO_VERSION }}

	- name: Run e2e
	run: \|
	make e2e

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