Update README.md

Changed documentation to show local check and made some adjustments to make it easier to understand and use for new users.

Author: basicx-StrgV

README.md

@@ -101,21 +101,21 @@ sourceManager.AddSource("msstore", "https://storeedgefd.dsx.mp.microsoft.com/v9.
 
 ### Find Latest Versions of a Package:
 
-Using the ***WinGetPackageManager*** class you can use the `SearchPackage` capability to get the latest version of a package and then retrieve the version number from the `AvailableVersion` property.
+Using the ***WinGetPackageManager*** class you can use the `GetInstalledPackages` capability to get the latest version of a package and then retrieve the version number from the `AvailableVersion` property.
 
-You would then be able to compare this to the latest version of your executing assembly and determine if you need to notify users of an available upgrade.
+You would then be able to compare this to the current version of the package and determine if you need to notify users of an available upgrade.
 
 ```csharp
+Version currentPackageVersion = null;
 Version latestPackageVersion = null;
 WinGetPackageManager packageManager = new WinGetPackageManager();
 string packageId = "nkdAgility.AzureDevOpsMigrationTools";
-var package = packageManager.SearchPackage(PackageId).SingleOrDefault();
+var package = packageManager.GetInstalledPackages(packageId, true).FirstOrDefault();
+currentPackageVersion = new Version(package.Version);
 latestPackageVersion = new Version(package.AvailableVersion);
 
-var version = Assembly.GetEntryAssembly().GetName().Version;
-if (latestPackageVersion > version)
+if (latestPackageVersion > currentPackageVersion)
 {
-    // Notify user of available upgrade
-    _logger.LogWarning("You are currently running version {version} and a newer version ({latestVersion}) is available. You should update now using Winget command 'winget {packageId}' from the Windows Terminal.", version, latestPackageVersion, packageId);
+    Console.WriteLine("You are currently running version {currentVersion} and a newer version ({latestVersion}) is available. You should update now using Winget command 'winget {packageId}' from the Windows Terminal.", currentPackageVersion, latestPackageVersion, packageId);
 }
 ```