add paper

README.md

@@ -71,6 +71,7 @@
 - [Pedipulate: Enabling Manipulation Skills using a Quadruped Robot's Leg](https://arxiv.org/abs/2402.10837)
 - [ProNav: Proprioceptive Traversability Estimation for Legged Robot Navigation in Outdoor Environments](https://arxiv.org/abs/2307.09754)
 - [Reduced Model Predictive Control Toward Highly Dynamic Quadruped Locomotion](https://ieeexplore.ieee.org/document/10418132/)
+- [Rethinking Robustness Assessment: Adversarial Attacks on Learning-based Quadrupedal Locomotion Controllers](https://arxiv.org/abs/2405.12424)
 - [Sim-to-Real: A Performance Comparison of PPO, TD3, and SAC Reinforcement Learning Algorithms for Quadruped Walking Gait Generation](https://www.scirp.org/journal/paperinformation?paperid=131938)
 - [Track2Act: Predicting Point Tracks from Internet Videos enables Diverse Zero-shot Robot Manipulation](https://arxiv.org/abs/2405.01527)
 - [Understanding URDF: A Dataset and Analysis](https://ieeexplore.ieee.org/abstract/document/10478618)