Add xcode project add to readme

README.md

@@ -172,6 +172,7 @@ A short wishlist for the next releases:
  - Added FBO source. You can create a custom openFrameworks application for piMapper by extending the FboSource class. Add/register your custom object as source in piMapper and you will be able to select it in the source editor. Source is saved and loaded from the settings as well.
  - Fixed issue #15
  - Added -f (fullscreen) flag for the Raspberry Pi version. Use `./yourApp -f` to launch it fullscreen on start.
+ - Added XCode project file to example.
 
 ### Version 0.2.0 (2014-10-18):
  - Added logo (thanks [Irina Spicaka](http://irina.spicaka.info/))