Adds Doobie Stream handling to the README

[ghost]

Doobie has support for transacting a fs2 stream. For ex: I can convert a Stream[ConnectionIO, A] into a Stream[IO, A] ( see doobie-final-streaming )

Does tranzactio provide similar functionality? If not, how would you simulate this?

[gaelrenoux]

Yes, tranzactio has a feature for this. In the Doobie package, you have a tzioStream method, which takes a fs2.Stream[ConnectionIO, A] and returns a zio.stream.ZStream[Connection, DbException, A].

I'll add this to the README.

[ghost]

Oh I knew about tzioStream. The biggest thing I wanted to know was how to transform a ZStream[Connection DbException, A] into a ZStream[Database, DbException, A]. Currently, the transaction methods say for ex:Database#transactionOrDieR only operate on zio effects and not zio streams.

Whereas in Doobie (w/ using toZStream() from zio-interop-cats), you are able to transform Stream[ConnectionIO, A] into something like thisZStream[DoobieTransactorLayerProvider, Throwable, A]`

[gaelrenoux]

Ah OK, I get your point. Unfortunately, I'm not too familiar with ZIO streams, and in the sample streaming application I converted the stream to a ZIO before applying the Database. I'll try to take a look at this, but I welcome any PR on the subject.