rework repository tree
The repository tree needs rework regarding correctness, and stronger emphasis on the three stages Working Tree, Index, History.
Since the repository is only the
the Subtree root has to be renamed
Repository -> Projekt.
The Snapshots is and was a way to put Emphasis on the fact
that git stores Snapshots which should be part of the presentation
but could at most live in a annotion as of now.
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information