Add pipeline tag and paper link

This PR adds the `pipeline_tag: other` to the model card metadata, which is appropriate for these non-standard models, and adds a direct link to the paper in the model card content. No other changes are made to the existing metadata or documentation.

README.md

@@ -1,17 +1,20 @@
 ---
-license: apache-2.0
 library_name: pytorch
+license: apache-2.0
+pipeline_tag: other
 tags:
-  - stellarator
-  - fusion
-  - plasma-physics
-  - flow-matching
-  - surrogate-model
-  - onnx
+- stellarator
+- fusion
+- plasma-physics
+- flow-matching
+- surrogate-model
+- onnx
 ---
 
 # BoSS models
 
+This repository contains the models from the paper [Generative modeling for fusion: a large-scale benchmark of stellarator fast-ion simulations](https://huggingface.co/papers/2610.37910).
+
 The models from the **Benchmark of Stellarator Simulations (the BoSS)**, a
 database of stellarator configurations paired with ideal-MHD equilibria and the
 guiding-center orbits of fusion-born alpha particles.
@@ -135,4 +138,4 @@ conversion, export and verification scripts are in `verification/`.
 
 ## License
 
-Apache License 2.0. Copyright 2026 The Simons Foundation.
+Apache License 2.0. Copyright 2026 The Simons Foundation.