Fix mixup and clarify ClockDomain details #278

	name: "Linkceck and buildtest on PR"

	on:
	- pull_request

	jobs:
	test:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v1
	with:
	fetch-depth: 0
	- name: "setup python"
	uses: actions/setup-python@v2
	with:
	python-version: 3.9
	- name: "install dependencies"
	run: \|
	apt-get update -y && apt-get install -y git
	pip install -r requirements.txt
	- uses: ammaraskar/sphinx-problem-matcher@master
	- name: "check links"
	run: make linkcheck
	- name: "Test doc building"
	run: make html

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