Add badge in readme

Author: yuval-qf

README.md

@@ -1,6 +1,7 @@
 # Rogue - The AI Agent Evaluator
 
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+![Tests](https://github.com/qualifire-dev/rogue-private/actions/workflows/test.yml/badge.svg?branch=main)
 
 Rogue is a powerful, tool designed to evaluate the performance, compliance, and reliability of AI agents. It pits a dynamic `EvaluatorAgent` against your agent using Google's A2A protocol, testing it with a range of scenarios to ensure it behaves exactly as intended.