transpose-publishing/landscapeStudy: Peer review and preprint policies are unclear at most major journals

This release contains revisions based on feedback provided by the reviewers.

Improvements to the previous version:

• We updated the table on co-review policies. It now includes common variants of the terms displayed. We further provide a new table with sampled phrases giving more context to the terms.
• We have greatly improved the documentation of our code and data. Among other things, the README.md now contains tables with descriptions for the relevant data and code files.