Update link to newly cloned sample Rails app

Author: ianfleeton

README.rdoc

@@ -25,7 +25,7 @@ See Wiki on Github
 https://github.com/ianfleeton/paypal-express/wiki
 
 Play with Sample Rails App
-https://github.com/nov/paypal-express-sample
+https://github.com/ianfleeton/paypal-express-sample
 https://paypal-express-sample.heroku.com
 
 == Note on Patches/Pull Requests