docs(readme): improve readme with screenshots (#456)

README.md

@@ -2,6 +2,32 @@
 
 An app focused on a great Twitch chat experience.
 
+- iOS and Android support.
+- Multi-chat. Open multiple chat bubbles, and switch between them (only on Android.)
+- Tablet- and foldable-optimized interface.
+- Custom emotes. If the default emotes aren't enough for you, we support third-party emote sets!
+- Slide to reply to any message, and see the context of the conversation.
+- See your favorite channels' schedule -- past, present, and future, in a unified timeline.
+
+<table>
+<tr>
+<th>Android</th>
+<th>iOS</th>
+</tr>
+<tr>
+<td>
+
+![](./assets/screenshots/android/chat-recording.mp4)
+
+</td>
+<td>
+
+![](./assets/screenshots/ios/ipad-static.png)
+
+</td>
+</tr>
+</table>
+
 ## Project setup
 
 ### Android
@@ -13,4 +39,4 @@ An app focused on a great Twitch chat experience.
 
 1. Install Xcode 16;
 2. Install [Tuist](https://docs.tuist.io/guides/quick-start/install-tuist);
-2. Move to the `app-ios` directory, and run `tuist generate` to generate and open the Xcode project.
+3. Move to the `app-ios` directory, and run `tuist generate` to generate and open the Xcode project.