Update pipeline tag to audio-text-to-text

This PR updates the `pipeline_tag` metadata from `audio-to-audio` to `audio-text-to-text`. This change more accurately reflects the model's capabilities, as described in its paper abstract and model card, indicating its multimodal input (audio and text) and text generation capabilities. This ensures better discoverability for users searching for models with this specific functionality on the Hugging Face Hub.

README.md

@@ -1,13 +1,13 @@
 ---
-library_name: transformers
-license: mit
+base_model:
+- Qwen/Qwen2.5-7B
 datasets:
 - slprl/sTinyStories
 language:
 - en
-base_model:
-- Qwen/Qwen2.5-7B
-pipeline_tag: audio-to-audio
+library_name: transformers
+license: mit
+pipeline_tag: audio-text-to-text
 ---
 
 # Scaling Analysis of Interleaved Speech-Text Language Models