[JOSS-Review] Review comments

[cwentland0]

All around a good paper and very well-written code. A couple comments and questions to address for review openjournals/joss-reviews#8453:

• I agree with @svchb that there is insufficient explanation of the utility/importance of bifurcation analysis.
• What were the roles of the co-authors (David, Fred, and Henk) in writing this code/paper, or relation to the first author? Not clear from the commit history.
• The paper should make it clear that the code, as it is currently written, only handles solutions for the incompressible Navier-Stokes equations with optional temperature/salinity transport. References to general "fluid flow" are too broad.
• Either the README or the documentation should provide guidelines for community contributions, report issues, etc.
• The installation instructions or documentation should include a guide for installing optional dependencies to access the Epetra, HYMLS, and PETSc backends. I have no way of testing their validity beyond backing out the installation process from the GitHub actions.

[Sbte]

What were the roles of the co-authors (David, Fred, and Henk) in writing this code/paper, or relation to the first author? Not clear from the commit history.

I didn't see any guidance on how to add this to the paper, but I think I had to add it during the submission process. But for completeness sake, I'll add it here:

David contributed the PETSc backend, as well as various other useful bits of the software. Fred and Henk wrote both the Fortran code and the book that this package is based on, as well as providing guidance, verification, and endless discussions to make sure the code is correct.

[Sbte]

The issues described here should have been addressed by #60 and #61. Feel free to reopen this issue if the resolution was inadequate.