Merge pull request #2 from DevExpress-Examples/update-readme

update readme

Author: geumjaLee

Readme.md

@@ -1,27 +1,46 @@
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-# Word Processing Document API - How to Create a Master-Detail Report
+# Word Processing Document API - Generate, Populate, and Export Master-Detail Invoices
 
-This example shows how the Mail Merge feature enhanced with the **DOCVARIABLE** field specifics empowers the users to accomplish complex reporting tasks, such as creating Master-Detail reports. 
+This example demonstrates the use of the [Word Processing Document API](https://docs.devexpress.com/OfficeFileAPI/17488/word-processing-document-api)'s Mail Merge functionality to generate invoices from master-detail templates.
+
+![word document api master detail invoice result](./media/image.png)
 
 > [!Important]  
-> The Universal Subscription or an additional Office File API Subscription is required to use this example in production code. For pricing information, please refer to the [DevExpress Subscription](https://www.devexpress.com/Subscriptions/) page. 
+> The Universal Subscription or an additional Office File API Subscription is required to use this example in production code. For pricing information, please refer to the following page: [DevExpress Subscription](https://www.devexpress.com/buy/winforms-wpf-blazor-asp-net-maui/)
+
+## Implementation Details
+
 
-The project uses a three-level Supplier-Product-OrderDetail hierarchical data source with the **ITypedList** interface.
+Word Processing Document API allows you to perform a mail merge with master-detail templates. The ``TableStart:Name`` and ``TableEnd:Name`` merge fields define master and detail regions. The region name should match the group or table name in your data source. 
 
-## Files to Look At:
 
-* [MergeProcessor.cs](./CS/MergeProcessor.cs) (VB: [MergeProcessor.vb](./VB/MergeProcessor.vb))
+ Call the [RichEditDocumentServer.CreateMailMergeOptions()](https://docs.devexpress.com/OfficeFileAPI/DevExpress.XtraRichEdit.RichEditDocumentServer.CreateMailMergeOptions) method to create a new [MailMergeOptions](https://docs.devexpress.com/OfficeFileAPI/DevExpress.XtraRichEdit.API.Native.MailMergeOptions) object. This object contains mail merge options. Specify the object's [DataSource](https://docs.devexpress.com/OfficeFileAPI/DevExpress.XtraRichEdit.RichEditMailMergeOptions.DataSource) property to set the mail merge database. This example uses sample `NWind` data converted to a flat JSON database file.
+ 
+ Pass the `MailMergeOptions` object as the [RichEditDocumentServer.MailMerge](https://docs.devexpress.com/OfficeFileAPI/DevExpress.XtraRichEdit.RichEditDocumentServer.MailMerge.overloads) method parameter to apply specified options. 
+
+## Files to Review:
+
+* [NWindData.cs](./CS/NWindData.cs) (VB: [NWindData.vb](./VB/NWindData.vb))
 * [Program.cs](./CS/Program.cs) (VB: [Program.vb](./VB/Program.vb))
+
+## Documentation
+
+ * [Mail Merge in Word Processing Document API](https://docs.devexpress.com/OfficeFileAPI/15277/word-processing-document-api/mail-merge)
+
+## More Examples
+
+* [How to Automate Mail Merge: Generate, Populate, and Export Documents](https://github.com/DevExpress-Examples/word-document-api-mail-merge)
+ 
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