docs: shorten example descriptions in README table for better readability

Author: ciro-maciel

README.md

@@ -223,13 +223,13 @@ console.log(result.result.text);
 
 ## 📚 Practical Examples
 
-| Example        | File                    | Description              |
-| -------------- | ----------------------- | ------------------------ |
-| **Basic**      | `examples/hello.js`     | Simple agent with tools  |
-| **Security**   | `examples/security.js`  | HMAC authentication demo |
-| **Guardrails** | `examples/guardrail.js` | Input/output validation  |
-| **Handoffs**   | `examples/handoffs.js`  | Transfer between agents  |
-| **MCP**        | `examples/mcp/`         | MCP server integration   |
+| Example        | File                    | Description             |
+| -------------- | ----------------------- | ----------------------- |
+| **Basic**      | `examples/hello.js`     | Simple agent with tools |
+| **Security**   | `examples/security.js`  | HMAC authentication     |
+| **Guardrails** | `examples/guardrail.js` | Input/output validation |
+| **Handoffs**   | `examples/handoffs.js`  | Transfer between agents |
+| **MCP**        | `examples/mcp/`         | MCP server integration  |
 
 Run any example: