edit readme

README.md

-# registration
-
-A new Flutter project.
-
-## Getting Started
-
-This project is a starting point for a Flutter application.
-
-A few resources to get you started if this is your first Flutter project:
-
-- [Lab: Write your first Flutter app](https://docs.flutter.dev/get-started/codelab)
-- [Cookbook: Useful Flutter samples](https://docs.flutter.dev/cookbook)
-
-For help getting started with Flutter development, view the
-[online documentation](https://docs.flutter.dev/), which offers tutorials,
-samples, guidance on mobile development, and a full API reference.
+                     -    Flutter. 
+          :  ,  ,  ,    ,   ,   .
+           ,             ,    : Android (mobile), Android (tablet), Desktop (Windows 10), Web (Google Chrome).
+         ,   ,             -.
+