Use `https://s3.amazonaws.com/bbop-sqlite/hp.db.gz` as an example S3 download, not `https://s3.amazonaws.com/bbop-sqlite/hp.db`

[turbomam]

And/or encoutrage people to look at the manifest at https://s3.amazonaws.com/bbop-sqlite

Although, for some ontologies, there are a lot of objects other than the semantic sql database file.

[turbomam]

solved by #78