Add model card, tag and link to paper

This PR adds a model card, makes sure the model can be found at https://huggingface.co/papers/2409.07452 and from https://huggingface.co/models?pipeline_tag=image-to-3d.

README.md

@@ -1,3 +1,15 @@
----
-license: mit
----
+---
+license: mit
+pipeline_tag: image-to-3d
+---
+
+# Hi3D checkpoints
+
+This repository contains the checkpoints of the paper [Hi3D: Pursuing High-Resolution Image-to-3D Generation with Video Diffusion Models](https://huggingface.co/papers/2409.07452).
+
+<img src="https://github.com/yanghb22-fdu/Hi3D-Official/blob/main/asserts/pipeline.png?raw=true"
+alt="drawing" width="600"/>
+
+## Usage
+
+Refer to the Github repository: https://github.com/yanghb22-fdu/Hi3D-Official.