Add dedicated doc type for districts
Add dedicated doc type for districts

ini20/berliner-schulen,salaniz/berlin-events,LubyRuffy/berlin-school-data,salaniz/berlin-events,salaniz/berlin-events,ini20/berliner-schulen,MarkusH/berlin-school-data,MarkusH/berlin-school-data,LubyRuffy/berlin-school-data,LubyRuffy/berlin-school-data