displayName is never used

[Kaligule]

In the Readme and the example project there is a variable "displayName" for every author. I would expect that one to be displayed everywhere where the author is mentioned. Looking at the code and my example project though, it seems that the variable is never actually used.

Looking at the code

The variable exists only in the documentation:
https://github.com/dencold/hasper/search?q=displayName&unscoped_q=displayName

Looking at an example project

I would expect the displayed name to be Batman (displayName), but it is sandra (id).