Modify an existing Unity Game Template

Hi! I have an existing unity game template for an ios/android game but I am an artist not an engineer so I need some coding help to add some features.
assetstore.unity.com/packages/templates/packs/mobile-card-dungeon-crawler-137605
They are primarily simple tasks: tweaking the game to use sprite animations instead of only still images, adding a couple item types and a system to unlock level types. Thanks!