extensions/markdown-language-features/src/markdownEngine.ts/MarkdownEngine/getConfig
class MarkdownEngine:	private getConfig(resource?: vscode.Uri): MarkdownItConfig {
		const config = vscode.workspace.getConfiguration('markdown', resource);
		return {
			breaks: config.get<boolean>('preview.breaks', false),
			linkify: config.get<boolean>('preview.linkify', true),
			typographer: config.get<boolean>('preview.typographer', false)
		};
	}