Move online tutorials to single place
"we put all online tutorials a single place, preferable at https://cybertaxonomy.org/download/manual/ or https://cybertaxonomy.org/download/platform/manual/, all other versions need to be removed, e.g. all files attached to https://dev.e-taxonomy.eu/redmine/projects/edit/wiki/PlatformDocumentation , but also check for other places (e.g. the workshop sites, ...). Old versions might be moved to an archive folder."
from meeting 2022-03-18 (https://wiki.bgbm.org/bdinotes/index.php?title=BDI_332, #9994)