Update README.md to include a centered display of settings and about page screenshots, improving visual layout and user engagement.

Author: UtkarshPrajapati

README.md

@@ -26,10 +26,14 @@ Here's a glimpse of the extension in action.
 
 Configure your Gemini API key easily through the extension popup.
 
+<div align="center">
+
 | Settings Page | About Page |
 | :---: | :---: |
 | [<img src="assets/popup_settings.png" width="250"/>](assets/popup_settings.png) | [<img src="assets/popup_about.png" width="250"/>](assets/popup_about.png) |
 
+</div>
+
 ### Demo Video
 
 Check out the full features in this demo video.