update contributing 2 take (#28)

Author: fabOnReact

CONTRIBUTING.md

@@ -41,7 +41,12 @@ yarn android
 cd watch-example
 yarn install
 yarn start --port=8082
-# Now build android
+```
+
+Build the project with `yarn android`, open the [react native dev menu][23] and change the bundle location to `your-ip:8082` (for ex. `192.168.18.2:8082`).
+Now you can build the WearOS app with the command:
+
+```bash
 yarn android
 ```
 

example/src/CounterScreen/index.android.tsx

@@ -49,7 +49,7 @@ const styles = StyleSheet.create({
     flex: 1,
     justifyContent: 'center',
     padding: 8,
-    backgroundColor: 'yellow',
+    backgroundColor: 'red',
   },
   counter: {
     height: 100,