Merge pull request #66 from dynamsoft-docs/preview

update to internal commit 64f49dea

Author: Dynamsoft-Jerson

programming/maui/user-guide.md

@@ -42,7 +42,7 @@ noTitleIndex: true
 
 ### .Net
 
-- .NET 7.0 and .NET 8.0.
+- .NET 7.0, 8.0 and 9.0.
 
 ### Android