Add detections list page

[fregante]

• For Meta: linkify github-url-detection function names refined-github#5860

Demo

• /detections.html
• /detections.html#isMilestoneList

[fregante]

I'm debating whether this is useful compared to just (somehow) linking to the source:

github-url-detection/index.ts

Lines 302 to 313 in ea0e865

	export const isReleasesOrTags = (url: URL | HTMLAnchorElement | Location = location): boolean => isReleases(url) || isTags(url) || isSingleTag(url);
	addTests('isReleasesOrTags', [
	'isReleases',
	'isTags',
	'isSingleTag',
	]);
	export const isDeletingFile = (url: URL | HTMLAnchorElement | Location = location): boolean => Boolean(getRepo(url)?.path.startsWith('delete'));
	addTests('isDeletingFile', [
	'https://github.com/sindresorhus/refined-github/delete/master/readme.md',
	'https://github.com/sindresorhus/refined-github/delete/ghe-injection/source/background.ts',
	]);

Also I think that it would be best to generate a docs.md and commit it rather than add this to the demo site. GitHub’s markdown parser and git history is better than this.

[fregante]

Merging for now, but eventually it's best to move this to a generated markdown instead, maybe.

This already works so it's better than nothing.