Dead link in docs
https://huggingface.co/transformers/model_doc/distilbert.html
In this page, under the paragraph,

_This model was contributed by victorsanh. This model jax version was contributed by kamalkraj. The original code can be found [here](https://github.com/huggingface/transformers/blob/master/examples/research-projects/distillation)._

The link to the original code is broken.
Fixed by #13643 