Revise project structure descriptions in README

Updated project structure section for clarity and detail.

Author: asadmukhtar28

README.md

@@ -20,14 +20,15 @@ A modern Android weather application built with **Kotlin**, following **MVVM**,
 - Support RTL mode with the supported languages of English and Arabic.
 
 ## Project Structure
-├── core # mapping interface 
-├── data # Repository Implementation & Data Source layer (API) & Mapping, 
-├── domain # Use cases & Business Logic.
-├── ui # ViewModels & UI layer
-├── di # Hilt modules, annotations for dependency injection
-├── utils # Common utility classes
-└── test # Unit tests
-
+```
+├── core        # Mapping interfaces
+├── data        # Repository implementations, API data sources, and mappers
+├── domain      # Business logic and use cases
+├── ui          # UI components and ViewModels
+├── di          # Dependency injection (Hilt) modules
+├── utils       # Shared utility classes
+└── test        # Unit tests
+```
 ## Screenshots
 <img width="200" height="400" alt="Screenshot_20251222_215115" src="https://github.com/user-attachments/assets/1b6854b1-bef9-48bb-9330-90d8fc7b27ad" />