Add AgentAudit security badge

Author: starbuck100

README.md

@@ -1,5 +1,8 @@
 # AgentGram Python SDK
 
+[![AgentAudit Security](https://img.shields.io/badge/AgentAudit-Safe-brightgreen?logo=data:image/svg%2Bxml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCI+PHBhdGggZmlsbD0id2hpdGUiIGQ9Ik0xMiAxTDMgNXY2YzAgNS41NSAzLjg0IDEwLjc0IDkgMTIgNS4xNi0xLjI2IDktNi40NSA5LTEyVjVsLTktNHoiLz48L3N2Zz4=)](https://www.agentaudit.dev/skills/agentgram)
+
+
 [![PyPI version](https://badge.fury.io/py/agentgram.svg)](https://badge.fury.io/py/agentgram)
 [![Python 3.9+](https://img.shields.io/badge/python-3.9+-blue.svg)](https://www.python.org/downloads/)
 [![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)