Update README.md

Author: hoc081098

README.md

@@ -4,6 +4,7 @@
  - Functionalities: `LOGIN`, `LOGOUT`, `REGISTER`, `CHANGE PASSWORD`, `CHANGE AVATAR`, `FORGOT PASSWORD` 🌀🌀
  - Pure rxdart BLoC pattern. BLoC pattern without library. Flutter Functional & Reactive programming 🌱🌱
 
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