Add library name and link to code

This PR adds the relevant library name (LeRobot) tag, and a link to the Github repository, enabling people to more easily find the code.

README.md

@@ -2,11 +2,15 @@
 pipeline_tag: robotics
 tags:
 - lerobot
+library_name: lerobot
 ---
+
 SmolVLA: A vision-language-action model for affordable and efficient robotics
 
 [Paper](https://huggingface.co/papers/2506.01844)
 
+[Code](https://github.com/huggingface/lerobot)
+
 Designed by Hugging Face.
 
 This model has 450M parameters in total.