Adding CocoaPods to the installation instructions

README.md

@@ -5,9 +5,9 @@ Mobile apps need to have **Nexus** UNA app installed.
 
 ## Run
 
-You need to have [npm](https://www.npmjs.com), [react-native](https://facebook.github.io/react-native/) along with [Android SDK](https://developer.android.com/studio) and/or [XCode](https://developer.apple.com/xcode/) installed to build apps.
+You need to have [npm](https://www.npmjs.com), [react-native](https://facebook.github.io/react-native/) along with [Android SDK](https://developer.android.com/studio) and/or [XCode](https://developer.apple.com/xcode/) and [CocoaPods](https://cocoapods.org/) installed to build apps.
 
-After downloading source code, unpacking it, run:
+After downloading source code, unpacking it, then run:
 ```bash
 npm install 
 ```
@@ -18,6 +18,7 @@ react-native run-android
 ```
 or iOS app (on Max OSX only):
 ```
+cd ios; pod install; cd ..
 react-native run-ios
 ```