`comment-time-machine-links` is misaligned #4227

Either we align it with the black header or we align it with the repo. I think the header is easier.

<img width="1675" alt="Screen Shot" src="https://user-images.githubusercontent.com/1402241/114354836-f99bbe80-9b98-11eb-84d1-8cab3bca1acc.png">

Live URL: https://github.com/sindresorhus/refined-github/blob/main/media/promo.png

GitHub’s information bar is aligned to the black bar:

// https://github.com/sindresorhus/refined-github/blob/master/media/promo.png

<img width="822" alt="Screen Shot 1" src="https://user-images.githubusercontent.com/1402241/114355230-6a42db00-9b99-11eb-9a3b-707c18888d2e.png">