Update pipeline tag, add library name, link to Github and paper

This PR updates the model card by:

- fixing the pipeline tag such that it can now be found at https://huggingface.co/models?pipeline_tag=automatic-speech-recognition&sort=trending
- it also adds a `library_name`, indicating its compatibility with the Transformers library
- includes a link to the Github repository
- includes a link to the paper

README.md

@@ -1,6 +1,7 @@
 ---
 license: apache-2.0
-pipeline_tag: audio-text-to-text
+pipeline_tag: automatic-speech-recognition
+library_name: transformers
 ---
 
 # 1. Step-Audio-Chat
@@ -177,4 +178,4 @@ This repository contains the Multimodal Large Language Model (LLM) component of
 
 ## 3. More information
 
-For more information, please refer to our repository: [Step-Audio](https://github.com/stepfun-ai/Step-Audio).
+For more information, please refer to our repository: [Step-Audio](https://github.com/stepfun-ai/Step-Audio) and the paper [Step-Audio: Unified Understanding and Generation in Intelligent Speech Interaction](https://hf.co/papers/2502.11946).