add in the docs a link to the gripper used in the videos

Author: danielsanjosepro

docs/index.md

@@ -20,6 +20,10 @@ _If you use this work, please cite it using the [bibtex](#citing) below._
 
 Check the [controllers (CRISP controllers) :simple-github:](https://github.com/utiasDSL/crisp_controllers) , robot [demos (CRISP controllers demos) :simple-github:](https://github.com/utiasDSL/crisp_controllers_demos), a simple [python interface (CRISP_PY) :simple-github:](https://github.com/utiasDSL/crisp_py), and a [Gymnasium wrapper (CRISP_GYM) :simple-github:](https://github.com/utiasDSL/crisp_gym) for real-world experiments.
 
+!!! info "Aloha gripper for Manipulators"
+    Check out [aloha4franka](https://tum-lsy.github.io/aloha4franka/) for the gripper used in the videos.
+
+
 | <video src="media/pap_demo.mp4" playsinline muted controls loop autoplay width="800"/> | <video src="media/policy.mp4" playsinline controls="true" loop="true" autoplay="true" width="800"/> |
 |:--:|:--:|
 | Robot teleoperated using a Follower-Leader system in [CRISP_GYM :simple-github:](https://github.com/utiasDSL/crisp_gym) | Diffusion Policy trained and deployed from the same demonstrations |