Do you have example files?
Do you have the files of the Usage Example available?
from https://github.com/openjournals/joss-reviews/issues/2316
Example usage: Do the authors include examples of how to use the software (ideally to solve real-world analysis problems).
You do provide a nice Usage Example, but to me it seems like you do not provide the demo files that have been used to generate it. Could you please point me to the place where they can be accessed?