Non-voting cds GeoJSON files do not have same format as others

[Andrew-Chen-Wang]

The GeoJSON format for all the latest GeoJSON files have a json schema of {"type": "Feature", "properties": {'Code': 'AK-AL', 'District': 'Alaska At-Large'}, "geometry": {"type": "MultiPolygon", "coordinates": [...]} }

However, for non-voting cds, their format is only the dictionary inside the "geometry", i.e. {"type": "MultiPolygon", "coordinates": [...]}. Now, the AK-0 2012 is the same format, but AK 2016 goes with the format above. I think we should update the non voting districts like AS-0. Please let me know if I should directly update the geojson files in 2012 or create a new directory called 2021 that goes with the new format.

more debugging info: Hear-Ye/find-your-district-and-representatives#2 (comment)

Thanks for this awesome repo!