Coupon Icon
<img width="564" alt="Screen Shot 2019-10-02 at 16 21 18" src="https://user-images.githubusercontent.com/36624358/66052575-1d586000-e531-11e9-82ec-1ff808b09316.png">

Hi, thanks for the icons. It's so useful :) 
But I found one error in one of the coupon icons.
Please refer to the image I attached. 

Best wishes,
Hyejin 
