Document battery charger barrel size #630

	name: Validate

	on:
	push:
	branches:
	- master
	pull_request: {}

	jobs:
	validate:
	runs-on: ubuntu-latest
	env:
	# ruby/setup-ruby@v1 does not offer a way to change the cached gems path.
	# See https://github.com/ruby/setup-ruby/issues/291
	GLOBAL_GEMS: 1
	steps:
	- uses: actions/checkout@v2
	with:
	submodules: recursive

	- name: Set up Ruby
	uses: ruby/setup-ruby@v1
	with:
	ruby-version: 2.7
	bundler-cache: true
	cache-version: 2

	- name: Build & Validate
	run: rake validate

	docker:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v2

	- name: Build container
	run: docker-compose build

	- name: Build site in container
	run: docker-compose run docs rake build

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