Typo at `ORDER BY` Clause documentation.

[diogo-gsa]

There is a typo regarding how PDB's ORDER BY Clause should be used together with the ASC argument. Currently, the documentation exemplifies the usage of both with the following expression: orderby(column("data_type_id")).asc()). However, such expression is not correct and thus it should be fixed to: orderby(column("data_type_id").asc()).

This issues is solved within the Pull Request: #42

[jmf-tls]

As mentioned in the previous comment, this was fixed in #42