Update README.md: Add Trent AI to Security

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Adds Trent AI to Security. Free entry points: an open-source (Apache-2.0) agent-environment scanner and a free security assessment.
Disclosure: I work on Trent.

🚀 Summary

Adds Trent AI to the list. Trent is an agentic AI security platform for developers shipping code with AI coding tools: it runs inside MCP-compatible clients (Claude Code, Codex, Cursor, Lovable), continuously assesses the code and AI agents a team ships, traces attack chains, and verifies proposed fixes landed.

Disclosure: I work on Trent AI.

✅ Checklist

• [ x] I have read the contribution guidelines
• [ x] The tool is AI-related and useful for developers
• [ x] I have added a short, clear description of the tool
• [ x] The link is not a duplicate of an existing one
• [ x] The title of the link is properly capitalized
• [ x] The link follows the Awesome List format (- [Tool Name](link) – description)
• [ x] My change does not include unrelated files or changes

📌 Why is this tool awesome?

AI coding tools ship code faster than any security team can review it, and there were already about 80 developers for every security engineer before coding agents joined. Trent puts the security review inside the same tools developers already use: connect over MCP, get findings judged for real exploitability in your environment rather than generic severity scores, and get proposed fixes verified after they land. For OpenClaw users there is also trentclaw, an open-source security assessment skill installable self-serve from ClawHub.

🔗 Link

https://trent.ai

📝 Additional context