Function formatRow

scripts/generate-readme.js:32–32

	});
	const pad = (cell, i) => cell + ' '.repeat(widths[i] - cell.length);
	const formatRow = cells => `| ${cells.map(pad).join(' | ')} |`;
	const separator = `| ${widths.map(w => '-'.repeat(w)).join(' | ')} |`;
	return [formatRow(header), separator, ...rows.map(formatRow)].join('\n');
}