How to specify SKU using PublishAsAzureSqlDatabase?

[tomasherceg]

I cannot find any example of specifying which SKU of Azure SQL Database I want to create on deployment.
I assume that it shall be set individually for each database in the particular server:

var db = builder.AddSqlServer("blazingpizza-db")
    .WithDataVolume()
    .PublishAsAzureSqlDatabase()
    .AddDatabase("DB", "BlazingPizza")
    // here I need to tell somehow that this database is Basic SKU

Thanks for the answer - I'll be happy to make a PR in the documentation once I get it working.