docs: clarify relationship between different features #689

	name: Test
	on: [push, pull_request]
	jobs:
	test:
	strategy:
	matrix:
	go-version: [1.18, 1.19, 1.20, 1.21]
	platform: [ubuntu-latest, macos-latest, windows-latest]
	runs-on: ${{ matrix.platform }}
	steps:
	- name: Install Go
	uses: actions/setup-go@v1
	with:
	go-version: ${{ matrix.go-version }}
	- name: Checkout code
	uses: actions/checkout@v2
	- name: Test klog
	run: \|
	go get -t -v ./...
	go test -v -race ./...
	- name: Test examples
	run: cd examples && go test -v -race ./...
	apidiff:
	runs-on: ubuntu-latest
	if: github.base_ref
	steps:
	- name: Install Go
	uses: actions/setup-go@v1
	with:
	go-version: 1.18
	- name: Add GOBIN to PATH
	run: echo "PATH=$(go env GOPATH)/bin:$PATH" >>$GITHUB_ENV
	- name: Install dependencies
	run: GO111MODULE=off go get golang.org/x/exp/cmd/apidiff
	- name: Checkout old code
	uses: actions/checkout@v2
	with:
	ref: ${{ github.base_ref }}
	path: "old"
	- name: Checkout new code
	uses: actions/checkout@v2
	with:
	path: "new"
	- name: APIDiff
	run: ./hack/verify-apidiff.sh -d ../old
	working-directory: "new"

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