Add README to ruixen crate for better crates.io presentation

🚀 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

Author: gitcoder89431

crates/agentic-tui/Cargo.toml

@@ -6,6 +6,7 @@ description = "Ruixen - The collaborative AI agent you work WITH, not at. Transf
 license = "MIT"
 repository = "https://github.com/gitcoder89431/agentic"
 homepage = "https://github.com/gitcoder89431/agentic"
+readme = "../../README.md"
 
 [[bin]]
 name = "ruixen"