Added SoftwareHeritage link, minor typo corrections and clarifications

The git history of the project is now archived on SoftwareHeritage and a
link to it as was added in the "Reproducible supplement" tag just under the
abstract.

Also, some corrections were also made in the text. In particular, the part
explaining the separation of software and data reproducibility was slightly
clarified to be more clear

1 files changed, 0 insertions, 0 deletions

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