Merge pull request #17 from m-sadegh-sh/master

fix: Fixed the emailAddress prop name

thanks a lot. such improvements help me a lot.

README.md

@@ -26,7 +26,7 @@ class Model extends ChangeNotifier {
   String get country => _country;
 
   String _emailAddress;
-  set country(String val) {
+  set emailAddress(String val) {
     _emailAddress = val;
     notifyListeners();
   }