Fix blog 5.4: correct plan name to asp-talent-f1-dev, note system master database

Author: workcontrolgit

blogs/series-5-devops-data/5.4-azure-bicep-infrastructure.md

@@ -280,7 +280,7 @@ resource apiDatabase 'Microsoft.Sql/servers/databases@2023-05-01-preview' = {
 
 using '../main.bicep'
 
-param appServicePlanName   = 'asp-talent-b1-dev'
+param appServicePlanName   = 'asp-talent-f1-dev'
 param apiAppName           = 'app-talent-api-dev'
 param identityAppName      = 'app-talent-ids-dev'
 param identityAdminAppName = 'app-talent-admin-dev'
@@ -352,7 +352,7 @@ az resource list \
   --output table
 ```
 
-You should see eight resources: one App Service Plan, three Web Apps, one Static Site, one SQL Server, and two SQL Databases.
+You should see eight resources: one App Service Plan, three Web Apps, one Static Site, one SQL Server, and two SQL Databases. Azure also lists a `master` database — this is a system database automatically created by Azure SQL and does not count as one of your provisioned resources.
 
 Navigate to each Web App in the Portal (`portal.azure.com → App Services → app-talent-api-dev`) and confirm the URL opens — it will show a default "Your web app is running" page until the .NET application is deployed in Article 5.6.