docs: document `/api` extra fields #30

	name: Main

	on:
	push:
	branches:
	- master
	pull_request:

	jobs:

	main:
	name: Main Process
	runs-on: ubuntu-latest
	env:
	GO_VERSION: stable
	GOLANGCI_LINT_VERSION: v1.54.2
	CGO_ENABLED: 0

	steps:

	# https://github.com/marketplace/actions/checkout
	- name: Check out code
	uses: actions/checkout@v3
	with:
	fetch-depth: 0

	# https://github.com/marketplace/actions/setup-go-environment
	- name: Set up Go ${{ env.GO_VERSION }}
	uses: actions/setup-go@v4
	with:
	go-version: ${{ env.GO_VERSION }}

	- name: Check and get dependencies
	run: \|
	go mod tidy
	git diff --exit-code go.mod
	git diff --exit-code go.sum

	# https://golangci-lint.run/usage/install#other-ci
	- name: Install golangci-lint ${{ env.GOLANGCI_LINT_VERSION }}
	run: \|
	curl -sSfL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh \| sh -s -- -b $(go env GOPATH)/bin ${GOLANGCI_LINT_VERSION}
	golangci-lint --version

	- name: Make
	run: make

	- name: Make Image
	run: make image

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