I added a co-author in my commits as demonstrated by https://help.github.com/en/articles/creating-a-commit-with-multiple-authors
The PR can be seen here https://github.com/einsteinpy/einsteinpy/pull/241 , but the co-author is neither showing up in contributors https://github.com/einsteinpy/einsteinpy/graphs/contributors nor here https://github.com/einsteinpy/einsteinpy/commits?author=OVSofia .
What have I done wrong here, so that I don’t make the same mistake in future?