Update README.md

Author: vanphuc1201

README.md

@@ -5,7 +5,7 @@ A sleek and efficient task management application that helps you stay organized
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 ## 📸 Screenshot
-![Phuc Task Manager Interface](Ui.png)  
+![Phuc Task Manager Interface](docs/Ui.png)  
 *Main application interface showing task management features*
 
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@@ -358,4 +358,4 @@ Phuc supports multiple date formats:
 <div align="center">
 Enjoy using Phuc! 🎯
 
-</div>
+</div>