added details to database readme

Author: clemensott

docs/database.md

@@ -6,6 +6,7 @@ We use [Entity Framework Core](https://docs.microsoft.com/en-us/ef/core/) with S
 
 1. Add or remove properties in the model classes.
 2. Open the Package Manager Console in Visual Studio
-3. Ensure the default project is selected as `Signal-Windows.Lib` as this is where the DbContext classes are.
-4. Run `Add-Migration <migration name> -Context <DbContext class>`. Typically `migration name` is just the number of the migration (m4, m5, m6, etc.). `DbContext class` is the class name of the DB we're migrating. Most migrations are to `SignalDBContext` but `LibsignalDBContext` is also valid.
-5. Debug the app to ensure the migration runs successfully. Migrations are triggered [here](https://github.com/signal-csharp/Signal-Windows/blob/55598a6bdf57ce22f48fc18bc587b257122115a0/Signal-Windows/App.xaml.cs#L60-L61) as soon as the app is started up.
+3. Ensure the default project in the Package Manager Console is selected as `Signal-Windows.Lib` as this is where the DbContext classes are.
+4. Ensure the startup project is selected as `Signal-Windows` as this is the main application.
+5. Run `Add-Migration <migration name> -Context <DbContext class>`. Typically `migration name` is just the number of the migration (m4, m5, m6, etc.). `DbContext class` is the class name of the DB we're migrating. Most migrations are to `SignalDBContext` but `LibsignalDBContext` is also valid.
+6. Debug the app to ensure the migration runs successfully. Migrations are triggered [here](https://github.com/signal-csharp/Signal-Windows/blob/55598a6bdf57ce22f48fc18bc587b257122115a0/Signal-Windows/App.xaml.cs#L60-L61) as soon as the app is started up.