Add pipeline_tag and library_name to metadata

This PR updates the YAML metadata at the top of the model card to include:
- `pipeline_tag: text-generation` so users can easily discover this model under the text generation category.
- `library_name: transformers` to indicate compatibility with the Transformers library.

No changes were made to the markdown content itself as it is already highly detailed and well-documented.

README.md

@@ -1,10 +1,13 @@
 ---
-license: apache-2.0
-datasets:
-- allenai/tmax-15k-open-instruct
 base_model:
 - Qwen/Qwen3.5-2B
+datasets:
+- allenai/tmax-15k-open-instruct
+license: apache-2.0
+pipeline_tag: text-generation
+library_name: transformers
 ---
+
 ![image](https://cdn-uploads.huggingface.co/production/uploads/62608fc2ffe8827cb1d89f9f/XMW9_q0GCubxzTOgdsb4K.png)
 <p align="center">
   💻 <a href="https://github.com/hamishivi/tmax">Code</a> ·
@@ -122,5 +125,4 @@ If you use our model or data, please cite our paper:
       primaryClass={cs.CL},
       url={https://arxiv.org/abs/2606.23321}, 
 }
-```
-
+```