Add SQL-Server instructions to appendex

[d6y]

See email to hello subject Essential Slick, 3 March 2017.

• add example to appendex
• append to the list of credits .

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Hello!
Spent too much time coming up with a Slick configuration to use with SQL Server.
I would really like to see Appendix A of your book expanded to include many more databases and examples.
Here are my results for setting up SQL Server with Slick: (application.conf, build.sbt)
The above has three possible options for the JDBC driver. All three, so far, seem to work.
I've successfully connected with the sqlserver, sqlserverCP and sqlserverCP1 configurations.
A couple more details:
import slick.jdbc.SQLServerProfile.api._
val db = Database.forConfig("sqlserverCP1")
The only test I've done so far is a simple database query.
Thanks for your book!
Best regards,