It is unnecessary to include braces, quotation marks or other wiki-markup in the template. The |text= field does allow the use of wiki-markup at the contributor's discretion.

• image - Places an image relating to the subject of the article on the left side of the section.
• size - Sets the image size, if left out or left blank it will default to 250px.
• caption - Creates a caption for the image.
• text - is the "Did you know" verbiage. No quotation marks needed.
• link - is the link to the article the subject is referring.