Update the README

• References to papers, including manuscript
• Multi-TOX example(s)
• Explanations
• "This package will soon be submitted to CRAN. Until then you can install it via remotes.."

added documentation label

added high priority label

marked the checklist item "This package will soon be submitted to CRAN. Until then you can install it via remotes.." as completed

marked the checklist item References to papers, including manuscript as completed

marked the checklist item Explanations as completed

marked the checklist item Multi-TOX example(s) as completed

mentioned in merge request !32 (merged)

closed via merge request !32 (merged)

mentioned in commit 2b12a27e