[DO NOT MERGE] Paper review comments

[gassmoeller]

These are my review comments for the JOSS paper draft. This PR is not meant to be merged, it was just the easiest way for me to comment on specific pieces of the paper. I enjoyed reading the paper it is well written and covers the most important topics of a JOSS paper. However, I think the paper should be extended somewhat to include:

• more references to existing benchmark studies to provide a better view of the state of the field
• more references to other pre/postprocessing tools to establish where your solution fits into existing projects
• a more detailed description of the algorithms you use (in particular for the postprocessing interpolation or mapping)