Save actual database : Entity Framework Core

Question

I am working thru an excellent tutorial: 

http://www.entityframeworktutorial.net/efcore/entity-framework-core-console-application.aspx

 

I can do inserts deletes etc - but to the datacontext.

 

How can i see these real changes in the actual SQL dbs - on Server Explorer - ie persisted changes so theyll be there when i open  my dbs next session.

 

 Thanks in advance