996176: Added the UG for completed features, API and events.

Author: SrisabariSF4261

Document-Processing-toc.html

@@ -5123,7 +5123,7 @@
 							<li><a href="/document-processing/excel/spreadsheet/blazor/undo-redo">Undo and Redo</a></li>
 							<li><a href="/document-processing/excel/spreadsheet/blazor/accessibility">Accessibility</a></li>
 							<li><a href="/document-processing/excel/spreadsheet/blazor/events">Events</a></li>
-							<li><a href="https://ej2.syncfusion.com/javascript/documentation/api/spreadsheet">API Reference</a></li>
+							<li><a href="https://help.syncfusion.com/cr/blazor/Syncfusion.Blazor.Spreadsheet.SfSpreadsheet.html">API Reference</a></li>
 						</ul>
 					</li>
 				</ul>