v1.3.5

• support rendering <h1>/<h2>/<h3>/<h4>/<h5>/<h6> to correspond with their respective sizes.*1

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*1 you can modify them in the builder during runtime by using ZHTMLParserBuilder.initWithDefault().add(H1_HTMLTagName(), withCustomStyle: MarkupStyle(font: MarkupStyleFont(size: 18, weight: .style(.semibold)))).build().

Thanks to @makhocheung for noticing that I missed supporting H tags. #12