Correct binder badge URL only when explicitly addding correct "repo_name" in *.yml file

[mniehus]

Hi.

Playing around with the great (!!!) mknotebooks features, namely the config example *.yml file for binder badge URL creation, i happens that in my working example for a gitlab repo, the correc badge was only created when adding in the *.yml the correct "repo_name", which by default was "GitLab", but should be the repo name.
example:
repo_name: "greenape/mknotebooks"

cheers