added TODO

Author: dotansimha

README.md

@@ -30,3 +30,8 @@ http://dotansimha.github.io/angularjs-dropdown-multiselect/
 
 ## TODO:
 	- Full documentation for available features.
+	- Load options from server.
+	- Grouping options by property.
+	- Search filter.
+
+	- You may send me more requests for features - open an issue with "feature request" tag - Thanks!