Missing link for aat_types in tsv.md

[frederik-elwert]

The doc for aat_types in tsv.md states:

One or more URI identifiers from a web-published vocabulary corresponding to the above types; ideally these would come from this list of ~160 types drawn from the Getty AAT vocabulary; comma-delimited.

However, the link for the types from Getty AAT is empty. Is this extracted type list available somewhere? Otherwise this should probably be rephrased and link to AAT directly?

[kgeographer]

Thanks. I added two files and changed the wording of that section of tsv.md. WHG has made a subset of the over 900 AAT concepts used as place types in TGN. We intend to provide some filtering or faceting capability on AAT place types, and felt the need to limit the number. Other functions will act upon the free-text 'types' field.