TuKoResearch/AuriStream1B_librilight_ckpt500k · Update pipeline tag, add project page and paper links

This PR improves the model card for AuriStream by:

Updating the pipeline_tag from feature-extraction to audio-to-audio. This change better reflects the model's generative capabilities, particularly its ability to create "speech continuations", and enhances its discoverability on the Hugging Face Hub under the correct pipeline.
Adding a direct link to the associated Hugging Face paper page: Representing Speech Through Autoregressive Prediction of Cochlear Tokens.
Including a link to the official project page: https://tukoresearch.github.io/auristream-speech/.

These additions provide users with a more accurate understanding of the model's functionality and direct access to its research and related resources.