Paper: Review 1: technical issues

For @jwbuurlage's review comments not regarding paper

• install docs: integrate his working fedora instructions
• install docs: add a Other Linux Distributions with list of dependencies to avoid Ubuntu install reverse engineering
• intro: say more about what it actually does here: https://ttk.gricad-pages.univ-grenoble-alpes.fr/spam/intro.html
• investigate meta-package to slim down dependencies (this would work for R, CGAL, ...)
• upload datasets onto Zenodo for tutorials
• issues/support make it clear that now you can (and should) create an issue on gitlab
• update tutorials with links to Zenodo datasets