update README

- got evidence from @dvcrn that figwheel works on real iOS device
- source maps are supported when you debug in chrome.

README.md

@@ -25,7 +25,7 @@ Contributions are welcome.
 - Uses React Native v0.18.0
 - Same codebase for iOS and Android
 - Figwheel used for REPL and live coding.
-  - Works in iOS (tested using simulator).
+  - Works in iOS (real device and simulator).
   - Works in real Android device
   - Works in Android simulator Genymotion (with re-natal use-figwheel -H 10.0.3.2)
   - Works in stock Android emulator (with re-natal use-figwheel -H 10.0.2.2)
@@ -33,6 +33,7 @@ Contributions are welcome.
   - You can reload app any time, no problem.
   - "Debug in Chrome" is not required anymore.
   - Custom react-native components are supported (with re-natal use-component <name>)
+  - Source maps are available when you "Debug in Chrome"
 - Optimizations :simple is used to compile "production" index.ios.js and index.android.js
 - [Unified way of using static images of rn 0.14+](https://facebook.github.io/react-native/docs/images.html) works
 - Works on Linux (Android only)
@@ -251,7 +252,14 @@ $ re-natal use-figwheel
 
 To upgrade React Native to newer version please follow the official
 [Upgrading](https://facebook.github.io/react-native/docs/upgrading.html) guide of React Native.
-Re-Natal makes no changes to the files generated by react-native so the official guide should be valid.
+Re-Natal makes almost no changes to the files generated by react-native so the official guide should be valid.
+
+### Changes Re-Natal does to original RN application
+It would be perfect not to do any changes there, but...
+* To make source maps available in "Debug in Chrome" mode re-natal patches
+the react native packager to serve \*.map files from file system.
+To do this [these lines are commented](https://github.com/facebook/react-native/blob/master/packager/react-packager/src/Server/index.js#L400-L401)
+in file "node_modules/react-native/packager/react-packager/src/Server/index.js"
 
 ## Tips
 - Having `rlwrap` installed is optional but highly recommended since it makes
@@ -273,7 +281,6 @@ index of the device on the list.
 - The Xcode-free workflow is for convenience. If you're encountering app crashes,
 you should open the Xcode project and run it from there to view errors.
 
-
 ## Dependencies
 As Re-Natal is the orchestration of many individual tools, there are quite a few dependencies.
 If you've previously done React Native or Clojure development, you should hopefully