Follow these steps.
1. – Find the article in the online edit interface and click to edit the story.
2. – Go to the ‘edit tab’ of the article and open the ‘Extra Fields’ area on the right hand side.
3. – Enter the quote without opening and closing quotation marks, as the online template will add these.
4.- Enter the attribution for the quote in the appropriate text area.
5. – Save, close and recache the article.
Here is a step-by-step video: