Improve console logging example by explaining more about Dispose (#4869)

docs/logs/getting-started-aspnetcore/Program.cs

@@ -19,7 +19,7 @@
 
 var builder = WebApplication.CreateBuilder(args);
 
-// Remove default providers and add OpenTelemetry logging provider
+// Remove default providers and add OpenTelemetry logging provider.
 // For instructional purposes only, disable the default .NET console logging provider to
 // use the verbose OpenTelemetry console exporter instead. For most development
 // and production scenarios the default console provider works well and there is no need to

docs/logs/getting-started-console/Program.cs

@@ -17,7 +17,7 @@
 using Microsoft.Extensions.Logging;
 using OpenTelemetry.Logs;
 
-using var loggerFactory = LoggerFactory.Create(builder =>
+var loggerFactory = LoggerFactory.Create(builder =>
 {
     builder.AddOpenTelemetry(logging =>
     {
@@ -37,6 +37,10 @@
     recallReasonDescription: "due to a possible health risk from Listeria monocytogenes",
     companyName: "Contoso Fresh Vegetables, Inc.");
 
+// Dispose logger factory before the application ends.
+// This will flush the remaining logs and shutdown the logging pipeline.
+loggerFactory.Dispose();
+
 public static partial class ApplicationLogs
 {
     [LoggerMessage(EventId = 1, Level = LogLevel.Information, Message = "Food `{name}` price changed to `{price}`.")]