This tool aims to empower editors of Wikivoyage to intuitively create district overview maps (e.g. for Berlin).
Most probably the boundaries have not been added to OpenStreetMap yet. You can either wait and hope that somebody will add them for you or get active yourself, head over to OSM and draw the district boundaries and add Wikidata tags to them. Just be aware that those boundaries have to be official districts!
If you have ideas on how to make this tool better please head over to the GitHub repository and participate.
Sure, thank you! You can send me some Satoshis via the Lightning network. Here is my Tallycoin Fundraiser Page.