🎯 Update Size of demo screen on README.md

Author: ChunhThanhDe

README.md

@@ -41,12 +41,8 @@ Make sure to describe the context and requirements of your challenge in detail.
 
 | Challenge                     | Description                                                                                                                                           | Screenshots                                                                                       | Link                                                                                                   |
 | ----------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------ |
-| Challenge 1: Movie Selection  | A movie selection screen with a horizontal sliding effect. Click to view detailed information including description, ticket price, and showtimes.      | [![Screen](movie_selection_screen/media/screen1.png)](https://github.com/Flutter-Journey/Flutter-UI-Challenge/tree/main/movie_selection_screen) | [Demo Video](https://youtube.com/shorts/cHObOQJJ9vA)                                                  |
-| Challenge 2: Rating Bar Screen| An animated rating bar with a sliding effect. Provides visual feedback with smooth animations and interactive interface for user rating experiences. | [![Screen](rating_bar_screen/media/screen2.jpg)](https://github.com/Flutter-Journey/Flutter-UI-Challenge/tree/main/rating_bar_screen) | [Demo Video](https://youtube.com/shorts/YF_nQpT840o)                                                  |
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+| Challenge 1: Movie Selection  | A movie selection screen with a horizontal sliding effect. Click to view detailed information including description, ticket price, and showtimes.      | <img src="movie_selection_screen/media/screen1.png" alt="Screen" width="300">                   | [Demo Video](https://youtube.com/shorts/cHObOQJJ9vA)                                                  |
+| Challenge 2: Rating Bar Screen| An animated rating bar with a sliding effect. Provides visual feedback with smooth animations and interactive interface for user rating experiences. | <img src="rating_bar_screen/media/screen1.jpg" alt="Screen" width="300">                        | [Demo Video](https://youtube.com/shorts/YF_nQpT840o)                                                  |
 
 ## 📂 Requirements