Resolve "Create a rule that gets the construction date from cadaster data for Tabula dataset."

Closes #20 (closed)

\approve @ds @laurens @chengzhi

building/02_process/tabula/date_from_valencian_cadaster/date_from_valencian_cadaster.py

@@ -33,7 +33,8 @@ class DateFromValencianCadasterRule(AbstractRule):
                 Source database that contains the cadastral data, including the two necessary
                 tables `parcels` and `cadaster_buildings`.
             geometry (str):
-                Geometry of the building being currently processed.
+                Geometry of the building being currently processed. The geometry is a WKT
+                formatted string wrapped in th `ST_GeomFromText()` function.
 
         Returns:
             Integer that represents the building's construction year.