Update README with detailed feature list and MCP protocol implementation

Author: ciro-maciel

README.md

@@ -1,14 +1,21 @@
 # RiLiGar Solutions - Agents SDK for JavaScript
 
-A lightweight yet powerful framework for building multi-agent workflows in JavaScript.
-
-## Core concepts:
-
-1. **Agents**: LLMs configured with instructions, tools, guardrails, and handoffs
-2. **Handoffs**: Allow agents to transfer control to other agents for specific tasks
-3. **Guardrails**: Configurable safety checks for input and output validation
-4. **Tools**: Functions that agents can call to perform actions
-
+## About
+
+The Agents SDK is a robust JavaScript library designed to streamline the development of AI-powered applications through seamless integration with various Large Language Model (LLM) providers such as OpenAI, Google, and Anthropic. Built with flexibility and extensibility in mind, it implements the Message Control Protocol (MCP) for reliable agent communication and management.
+
+### Key Features
+
+- **Multi-Provider Support**: Built-in integrations with major LLM providers
+- **Agent Management System**: Sophisticated agent lifecycle and interaction handling
+- **Voice Integration**: Native support for voice-based interactions
+- **Advanced Tracing**: Comprehensive system for monitoring and debugging agent behaviors
+- **MCP Protocol**: Implementation of Message Control Protocol v1.0 featuring:
+  - Secure handshake mechanism
+  - Capability exchange
+  - Synchronous and asynchronous messaging
+  - Streaming support
+  - Robust error handling
 
 ## Resources