Update README.md

chore: update document

Author: hoaphantn7604

README.md

@@ -28,7 +28,7 @@ yarn add react-native-element-dropdown
 ```
 ### Demo
 
-[<img src="https://github.com/hoaphantn7604/file-upload/blob/master/document/dropdown/react-native-element-dropdown-thumbnal.jpg">](https://youtu.be/FhTDR_Ad_14)
+[<img src="https://github.com/hoaphantn7604/file-upload/blob/master/document/dropdown/react-native-element-dropdown-thumbnal.jpg">](https://youtube.com/shorts/36_SdDVHPHM?feature=share)
 
 
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