Generated API doc for query_region has a wrong description

See https://astroquery.readthedocs.io/en/latest/api/astroquery.vizier.VizierClass.html#astroquery.vizier.VizierClass.query_region

The description of `query_region` (which is generated with its API doc) is identical to the description of `query_region_async`.

Start with the generated API documentation for VizierClass.query_region and compare its description with query_region_async. Trace those two entry points to their source documentation and verify that the generated descriptions accurately distinguish the methods.

Written by the indexing model from the issue text.