src/vs/workbench/contrib/notebook/browser/view/renderers/cellRenderer.ts/MarkupCellRenderer/renderElement
class MarkupCellRenderer:	renderElement(element: MarkupCellViewModel, index: number, templateData: MarkdownCellRenderTemplate, height: number | undefined): void {
		if (!this.notebookEditor.hasModel()) {
			throw new Error('The notebook editor is not attached with view model yet.');
		}

		templateData.currentRenderedCell = element;
		templateData.currentEditor = undefined;
		templateData.editorPart.style.display = 'none';
		templateData.cellContainer.innerText = '';

		if (height === undefined) {
			return;
		}

		templateData.elementDisposables.add(templateData.instantiationService.createInstance(MarkupCell, this.notebookEditor, element, templateData, this.renderedEditors));
	}