feat(README): update the format

README.md

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+# Python Simple IoC - Dependency Injection Container
+
+[![CI](https://github.com/rande/python-simple-ioc/workflows/CI/badge.svg)](https://github.com/rande/python-simple-ioc/actions)
+[![Python 3.9+](https://img.shields.io/badge/python-3.9+-blue.svg)](https://www.python.org/downloads/)
+[![License](https://img.shields.io/badge/License-Apache%202.0-blue.svg)](LICENSE)
+
+A lightweight, **Pythonic** dependency injection container inspired by Symfony's DependencyInjection component. This library embraces Python's philosophy of simplicity while providing powerful tools for organizing complex applications.
+
+## 🎯 Why Use Dependency Injection?
+
+Dependency injection isn't just enterprise complexity - it's a **Pythonic pattern** that promotes:
+
+- **Clear separation of concerns** - Each class has a single responsibility
+- **Testability** - Easy to mock dependencies for unit tests
+- **Flexibility** - Change implementations without touching existing code
+- **Maintainability** - Explicit dependencies make code easier to understand
+
+This approach aligns perfectly with Python's zen: *"Explicit is better than implicit"* and *"Readability counts"*.
+
+## 🚀 Quick Start
+
+### Installation
+
+```bash
+pip install ioc
+```
+
+### Basic Usage
+
+1. **Define your services** in a `services.yml` file:
+
+```yaml
+parameters:
+  database_url: "sqlite:///app.db"
+  debug_mode: true
+
+services:
+  # Database connection
+  database:
+    class: myapp.database.Database
+    arguments: ["%database_url%"]
+
+  # User repository with injected database
+  user_repository:
+    class: myapp.repositories.UserRepository
+    arguments: ["@database"]
+
+  # User service with injected repository
+  user_service:
+    class: myapp.services.UserService
+    arguments: ["@user_repository"]
+    calls:
+      - [set_debug, ["%debug_mode%"]]
+```
+
+2. **Use the container** in your application:
+
+```python
+import ioc
+
+# Build container from configuration
+container = ioc.build(['services.yml'])
+
+# Get your services - dependencies are automatically resolved!
+user_service = container.get('user_service')
+
+# Your service is ready to use with all dependencies injected
+users = user_service.get_all_users()
+```
+
+## 🏗️ Perfect for Python Projects
+
+This library follows Python best practices:
+
+- **Configuration over code** - Define dependencies in YAML, not scattered across your codebase
+- **Explicit dependencies** - See exactly what each service needs at a glance
+- **No magic** - Simple, predictable behavior that follows Python conventions
+- **Framework agnostic** - Works with Flask, Django, FastAPI, or pure Python
+
+## 📚 Advanced Features
+
+### Service Definitions
+
+```yaml
+services:
+  # Constructor injection
+  email_service:
+    class: myapp.EmailService
+    arguments: ["@mailer", "%sender_email%"]
+
+  # Method calls after construction
+  logger:
+    class: logging.Logger
+    arguments: ["myapp"]
+    calls:
+      - [setLevel, ["INFO"]]
+      - [addHandler, ["@file_handler"]]
+
+  # Weak references (lazy loading)
+  cache_service:
+    class: myapp.CacheService
+    arguments: ["#@redis_client"]  # Only loaded when needed
+```
+
+### Parameters and Environment
+
+```yaml
+parameters:
+  # String interpolation
+  log_file: "/var/log/%app_name%.log"
+
+  # Environment variables
+  secret_key: "%env(SECRET_KEY)%"
+
+  # Default values
+  redis_url: "%env(REDIS_URL):redis://localhost:6379%"
+```
+
+## 🧪 Testing Made Easy
+
+With dependency injection, testing becomes straightforward:
+
+```python
+import unittest
+from unittest.mock import Mock
+
+class TestUserService(unittest.TestCase):
+    def test_create_user(self):
+        # Mock the repository
+        mock_repo = Mock()
+        mock_repo.save.return_value = True
+
+        # Inject the mock
+        user_service = UserService(mock_repo)
+
+        # Test with confidence
+        result = user_service.create_user("john@example.com")
+        self.assertTrue(result)
+        mock_repo.save.assert_called_once()
+```
+
+## 📖 Learn More
+
+- [Documentation](https://github.com/rande/python-simple-ioc/wiki)
+- [Examples](examples/)
+- [API Reference](docs/)
+
+## 🤝 Contributing
+
+Contributions are welcome! This project follows Python community standards:
+
+- PEP 8 code style
+- Type hints for better IDE support
+- Comprehensive tests
+- Clear documentation
+
+## 📄 License
+
+Licensed under the Apache License 2.0. See [LICENSE](LICENSE) for details.
+
+---
+
+*"Beautiful is better than ugly. Explicit is better than implicit. Simple is better than complex."* - The Zen of Python
+
+This library embodies these principles while providing the power and flexibility needed for serious Python applications.

pyproject.toml

@@ -6,7 +6,7 @@ build-backend = "setuptools.build_meta"
 name = "ioc"
 version = "0.0.16"
 description = "A small dependency injection container based on Symfony2 Dependency Component"
-readme = "README.txt"
+readme = "README.md"
 license = "Apache-2.0"
 authors = [
     {name = "Thomas Rabaix", email = "thomas.rabaix@gmail.com"}