src/vs/workbench/contrib/notebook/browser/view/output/transforms/richTransform.ts/MdRendererContrib/render
class MdRendererContrib:	render(output: ICellOutputViewModel, item: IOutputItemDto, container: HTMLElement, notebookUri: URI): IRenderOutput {
		const disposable = new DisposableStore();
		const str = getStringValue(item);
		const mdOutput = document.createElement('div');
		const mdRenderer = this.instantiationService.createInstance(MarkdownRenderer, { baseUrl: dirname(notebookUri) });
		mdOutput.appendChild(mdRenderer.render({ value: str, isTrusted: true, supportThemeIcons: true }, undefined, { gfm: true }).element);
		container.appendChild(mdOutput);
		disposable.add(mdRenderer);
		return { type: RenderOutputType.Mainframe, disposable };
	}