how to insert card images by scrolling over the cards name

When i create a deck guide and i wish to for example make it so when you scoll over lets say N'Zoth how do i make it come up with the card image just scrolling over it 

Press the 'Card' button in the editor toolbar and type the name of the card within the [Hearthstone Card (tags

You need to add the correct name for it to work so just 'N'Zoth' wouldn't cut it, it's got to be the titled card name 'N'Zoth, the Corruptor'.

i see thank you