Only if you do not have a link to your menu(s), please click the link below to take photos or add each existing image of your menu. 
 
Click here to add your menu.
 
Steps:
Click Link
Click the Blue Cloud
Choose Image or Take Photos (Please make sure there is limited blur and good lighting)
Keep Auto delete image on "Don't autodelete"
If you have more than one menu image. Click "your devide/computer" or "take a picture"
Click the Green Upload Button
Copy Link
Add it to the Menu Link Text Field.