Update README.md, mayor.md.tmpl, and formula docs to use gt sling. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Update README.md, mayor.md.tmpl, and formula docs to use gt sling. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>