Improve model card: link to paper, set correct pipeline tag

This PR improves the model card by:

- Adding a link to the paper: https://huggingface.co/papers/2505.24581
- Changing pipeline tag from `sentence-similarity` to `feature-extraction`, enabling to find your model at https://huggingface.co/models?pipeline_tag=feature-extraction.

README.md

@@ -17,7 +17,7 @@ metrics:
 - spearman_dot
 - pearson_max
 - spearman_max
-pipeline_tag: sentence-similarity
+pipeline_tag: feature-extraction
 tags:
 - mteb
 - sentence-transformers
@@ -651,9 +651,4 @@ This is a [sentence-transformers](https://www.SBERT.net) model finetuned from [s
 
 - **Documentation:** [Sentence Transformers Documentation](https://sbert.net)
 - **Repository:** [Sentence Transformers on GitHub](https://github.com/UKPLab/sentence-transformers)
-- **Hugging Face:** [Sentence Transformers on Hugging Face](https://huggingface.co/models?library=sentence-transformers)
-
-### Full Model Architecture
-
-```
-SentenceTransformer(
+- **Hugging