Document enum mapping

[ferrx]

I ran into the usage in an aspnet core article here https://docs.microsoft.com/en-us/aspnet/core/security/authorization/secure-data#modify-the-app-to-secure-user-data

There is no documentation in /ef/core regarding the usage of enum. A small article under /ef/core/modeling/ would be great. Simply going over the fact that you can do this and how would suffice -- why you would do it (instead of using another DB table) might be out of scope, but would be nice to have.

Everything else is great, EF core is awesome!

[hanslai]

an example on how to use enumeration classes with EF Core is great.

[sputier]

I'd like to give it a try 😄