This coding language makes the use of Predefined tags. It is best to get familiarized with HTML if you want to convert your PSD document into HTML.

MarkdownPad is a free Markdown editor for Windows that that can convert Text to HTML or XHTML for you easily. Dwnload the free version here.

Converting Google Docs documents to HTML is easy. You can export documents as HTML, or use Docs to Markdown add-on from the Store to get the job done.