Given an object containing counts of both upvotes and downvotes, return what vote count should be displayed. This is calculated by subtracting the number of downvotes from upvotes.
getVoteCount({ upvotes: 13, downvotes: 0 }) ➞ 13
getVoteCount({ upvotes: 2, downvotes: 33 }) ➞ -31
getVoteCount({ upvotes: 132, downvotes: 132 }) ➞ 0
You can expect only positive integers for vote counts.