update README

Author: flexbox

hackathon/README.md

@@ -1,6 +1,6 @@
 # React Native Hackathon
 
-To ship your first app you should have completed all the previous exercices: **foundations**, **data management**, **ecosystem**, **navigation** and **releases**.
+To ship your first app you should have completed all the previous challenges: **foundations**, **data management**, **ecosystem**, **navigation** and **releases**.
 
 ## Ideas
 
@@ -23,7 +23,7 @@ npx react-native init awesome-app
 npx ignite-cli new awesome-app
 
 # Expo-powered
-expo init
+npx create-expo-app
 npx create-react-native-app
 npx ignite-cli new awesome-app --expo
 

hackathon/jimmy-punchline/README.md

@@ -16,7 +16,7 @@ yarn
 yarn ios
 ```
 
-![Preview app mobile Jimmy Punchline](./assets/jimmy-punchline-app.gif)
+<img src="https://github.com/flexbox/react-native-bootcamp/raw/main/hackathon/jimmy-punchline/assets/jimmy-punchline-app.gif" width="50%" height="50%" alt="Preview app mobile Jimmy Punchline">
 
 ## Demo
 

hackathon/revolut-kids-clone/.gitignore

@@ -12,3 +12,5 @@ web-build/
 
 # macOS
 .DS_Store
+
+*.mp4

hackathon/revolut-kids-clone/README.md

@@ -0,0 +1,14 @@
+# Revolut Kids Clone
+
+> A React Native clone from the Revolut Kids app
+
+## Tools
+
+- [`nativewind`](https://github.com/marklawlor/nativewind)
+
+## Getting Started
+
+```console
+yarn
+yarn ios
+```