As far as I can see, there are no "community guidelines", which are requested by JOSS. They say:
There should be clear guidelines for third-parties wishing to:
Contribute to the software
Report issues or problems with the software
Seek support
This would be something like the "contributing" section in the readme for https://github.com/kb-press/ndsplines/, along with some information on how to get help.
As far as I can see, there are no "community guidelines", which are requested by JOSS. They say:
This would be something like the "contributing" section in the readme for https://github.com/kb-press/ndsplines/, along with some information on how to get help.
openjournals/joss-reviews#1818