Merge pull request #12471 from Jxwoon/dev/jasminwoon/updateWhatPackageIs

Updating ProjectQuery Documentation "package"

Author: prmerger-automator[bot]

docs/extensibility/visualstudio.extensibility/project/project.md

@@ -6,7 +6,7 @@ ms.author: hwelliver
 monikerRange: ">=vs-2022"
 ms.subservice: extensibility-integration
 ms.topic: overview
-ms.date: 02/13/2023
+ms.date: 04/08/2024
 ---
 
 # Query the project API
@@ -62,6 +62,8 @@ WorkspacesExtensibility workSpace = this.Extensibility.Workspaces();
 
 If you're creating an [in-process extension](../get-started/in-proc-extensions.md), you instead access the project query space as shown in the following code example. Unless you have specifically created an in-process extension, use the snippet in the previous section to get an instance of the project query space object.
 
+In the following code excerpt, `package` represents an instance of [AsyncPackage](https://learn.microsoft.com/dotnet/api/microsoft.visualstudio.shell.asyncpackage?view=visualstudiosdk-2022), a class utilized in the development of Visual Studio extensions. The method `GetServiceAsync` is employed to asynchronously procure the query service from the Visual Studio's service container.
+
 ```csharp
 IProjectSystemQueryService queryService = await package.GetServiceAsync<IProjectSystemQueryService, IProjectSystemQueryService>();
 ProjectQueryableSpace workSpace = queryService.QueryableSpace;