Cannot show the markdown format

[NancyZY]

I import the library correctly, then I use it in simple case, but not show markdown format, there is some code:` override func viewDidLoad() {
super.viewDidLoad()

    let label2 = UILabel(frame:CGRectMake(10,20, 300, 100))
    let str = "# Header1 \n plain text \n \n##Header2 \n\n ###Header3\n \n ####Header4 \n \n#####Header5  \n\n######Header6 \n\n\n\n\n \n#######Header7 > Test \n\n> Test2 \n > Test3, okay, this is a quote format test. Sure it can be `**nested**`, like [that](yahoo.com) \n\n ########Header8  \n\n#########Header9  \n\n\n\n##########Header10 \n\n \n  Regular text. `inline code block` and some **bold**, *[italics links](yahoo.com)* \n \n  this is a [hyperlinks](http://www.yahoo.com)"

    let m = MarkdownParser()

    label2.textAlignment=NSTextAlignment.Left //文字右对齐
    label2.textColor=UIColor.whiteColor()  //白色文字
    label2.backgroundColor=UIColor.blackColor() //黑色背景
    label2.attributedText = m.convert(str)
}

` Hope your help!