Merge pull request #1 from DevExpress-Examples/geumjaLee-patch-1

Update README.md

README.md

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-*Files to look at*:
+
+# Word Processing Document API - Use Track Changes to Manage Revisions in a Document
+
+The following code sample project shows how to use Word Processing Document API to accept and reject revisions. Enable change tracking, specify revision's display options, and export the result to the PDF format.
+
+> [!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. 
+
+## Files to Review
 
 * [Program.cs](./CS/word-processing-document-api-track-changes/Program.cs) (VB: [Program.vb](./VB/word-processing-document-api-track-changes/Program.vb))
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-# Word Processing Document API - Use Track Changes to Manage Revisions in a Document
+## Documentation
+
+* [Track Changes](https://docs.devexpress.com/OfficeFileAPI/401231/word-processing-document-api/track-changes)
 
-The following code sample project shows how to use Word Processing Document API to accept and reject revisions. Enable change tracking, specify revision's display options and export the result to the PDF format.
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 ## Does this example address your development requirements/objectives?