Add Ivy Tendril to Tools

[rorychatt]

Summary

Adds Ivy Tendril to the section.

About Ivy Tendril

• License: Open Source
• Highlights: Open-source agentic software factory with an amazing desktop and web UI that handles parallel Git worktrees for you, complete with programmatic verifications and interactive review loops.
• Repository: https://github.com/Ivy-Interactive/Ivy-Tendril

Checklist

• Follows repository formatting and alphabetical placement
• Valid URL to active open-source project
• Concise, objective description

[o6uoq]

This has nothing to do with GitOps. Spam.