The Markdown component is very useful. This page right here is created using the Markdown component. If you don't know how to use Markdown, there is a create tutorial here.
Click and drag the Markdown component into a dropzone on the page. It is the M with the down arrow next to it.
Click on the highlighted Markdown component to open the Markdown editor.
You can see that the bottom half of the editor window had opened up a text box. You can enter markdown in here and see the results int he editor above immediately.
You have just successfully written some markdown.
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