in src/main/scala/com/twitter/scaffold/markdown/HtmlRenderer.scala [20:28]
private def printIndentedTag(node: SuperNode, tag: String, attributes: (String, String)*) = {
printer.println().print('<').print(tag)
for ((name, value) <- attributes)
printer.print(' ').print(name).print('=').print('"').print(value).print('"')
printer.print('>').indent(+2)
visitChildren(node)
printer.indent(-2).println().print('<').print('/').print(tag).print('>')
}