Add example ref with controller_runtime #271

	name: docs

	on:
	push:
	branches:
	- main
	tags:
	pull_request:

	jobs:
	lint:
	runs-on: ubuntu-latest
	name: Docs formatting and link checking.
	steps:
	- name: Checkout code into the Go module directory.
	uses: actions/checkout@v2

	- name: Install Go
	uses: actions/setup-go@v2
	with:
	go-version: 1.15.x

	- uses: actions/cache@v1
	with:
	path: ~/go/pkg/mod
	key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}

	- name: Formatting docs.
	env:
	GOBIN: /tmp/.bin
	run: make docs-check

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