+ update readme

+ add information including app structure and preview

README.md

@@ -1,2 +1,32 @@
 # GitHubSearch
  :octocat: A GitHub Search Android apps using Coroutines Flow, Dagger 2, MVVM, Modularization, Clean Architecture, Airbnb Epoxy, and Unit Test.
+There are 2 features on this apps:
+1. Search GitHub users by name.
+2. Get detail information of the user including Profile and Repository with load more features.
+
+## 💡 Stack and Libraries
+* [Kotlin](https://https://kotlinlang.org/) - built with 100% Kotlin.
+* [Coroutines Flow](https://github.com/alvayonara/OpenWeatherApps#:~:text=with%20100%25%20Kotlin.-,Coroutines%20Flow,-%2D%20emit%20multiple%20values) - emit multiple values sequentially (flatMap, zip, etc.)
+* [Jetpack Components](https://developer.android.com/jetpack/)
+  - Navigation
+  - ViewModel
+  - Material Components
+  - ViewBinding
+  - KTX
+* [Dagger 2](https://dagger.dev/) - dependency injection.
+* [Clean Architecture](https://blog.cleancoder.com/uncle-bob/2012/08/13/the-clean-architecture.html) - separates code into layers.
+* [Modularization](https://developer.android.com/guide/app-bundle/play-feature-delivery/) - separating logical components of project into discrete modules.
+* [Epoxy](https://github.com/airbnb/epoxy) - library for building complex screens in a RecyclerView.
+* [Retrofit2](https://github.com/square/retrofit/) - REST APIs.
+* [Moshi](https://github.com/square/moshi) - modern JSON library.
+* [Glide](https://github.com/bumptech/glide/) - load images.
+* [Timber](https://github.com/JakeWharton/timber/) - logger.
+* [Chucker](https://github.com/ChuckerTeam/chucker/) - an HTTP inspector.
+* [MockK](https://mockk.io/) - mocking unit testing.
+
+## 💎 Architecture
+This apps uses Clean Architecture to separate code into layers (Data - Domain - Presentation).
+![app structure](./image/app-structure.png)
+
+## 📱 App Preview
+![app preview](./image/app-preview.png)