Initial ReadMe changes

Author: mindgraffiti

README.md

@@ -1,4 +1,26 @@
 [![BuddyBuild](https://dashboard.buddybuild.com/api/statusImage?appID=5b2b904eaa674400010e975e&branch=develop&build=latest)](https://dashboard.buddybuild.com/apps/5b2b904eaa674400010e975e/build/latest?branch=develop)
 
 # woocommerce-ios
-Future home to the new iOS app
+A Jetpack-powered companion app for WooCommerce.
+[![BuddyBuild](https://dashboard.buddybuild.com/api/statusImage?appID=5b2b904eaa674400010e975e&branch=develop&build=latest)](https://dashboard.buddybuild.com/apps/5b2b904eaa674400010e975e/build/latest?branch=develop) 
+
+## Build Instructions
+
+### Download Xcode
+
+At the moment *WooCommerce for iOS* uses Swift 4.2 and requires Xcode 10 or newer. Previous versions of Xcode can be [downloaded from Apple](https://developer.apple.com/downloads/index.action).*
+
+### Third party tools
+
+We use a few tools to help with development. To install or update the required dependencies, run the follow command on the command line:
+
+`rake dependencies`
+
+#### CocoaPods
+
+The woocommerce-ios project uses [CocoaPods](http://cocoapods.org/) to manage third party libraries.  
+Third party libraries and resources managed by CocoaPods will be installed by the `rake dependencies` command above.
+
+#### Dangerbot
+
+The woocommerce-ios project uses [Danger](https://danger.systems/swift/) to enforce Swift linting styles.