add dependency badge

README.md

@@ -4,6 +4,7 @@
 [![License](https://img.shields.io/badge/license-MIT%2FApache-blue.svg)](https://github.com/makeecat/Peng#license)
 [![Docs](https://github.com/makeecat/Peng/actions/workflows/docs.yml/badge.svg)](https://makeecat.github.io/Peng/)
 [![CI](https://github.com/makeecat/Peng/actions/workflows/CI.yml/badge.svg)](https://github.com/makeecat/Peng/actions/workflows/CI.yml)
+[![dependency status](https://deps.rs/repo/github/makeecat/peng/status.svg)](https://deps.rs/repo/github/makeecat/peng)
 ## What is Peng
 Peng is a minimal Rust-based quadrotor simulation pipeline. It includes a simulator, controller, and planner, providing a basic framework for simulating quadrotor dynamics and control.
 ![demo](assets/Peng_demo.gif)