Add pipeline tag, link to paper and Github

This PR improves the model card by making sure it can be found at https://huggingface.co/models?pipeline_tag=image-to-3d.

It also makes it visible from https://huggingface.co/papers/2411.07025.

README.md

@@ -1,3 +1,8 @@
----
-license: mit
----
+---
+license: mit
+pipeline_tag: image-to-3d
+---
+
+This repository contains the model presented in [Scaling Mesh Generation via Compressive Tokenization](https://huggingface.co/papers/2411.07025).
+
+Code: https://github.com/whaohan/bpt