Add license and library_name to model card metadata

This PR enhances the model card by:
- Adding the `license: mit` metadata, based on the most common suggestion from other team members.
- Adding the `library_name: pytorch` metadata for better discoverability and adherence to Hugging Face Hub best practices, as per the task requirements for comprehensive model cards.

README.md

@@ -1,8 +1,10 @@
 ---
+pipeline_tag: image-to-3d
 tags:
 - model_hub_mixin
 - pytorch_model_hub_mixin
-pipeline_tag: image-to-3d
+library_name: pytorch
+license: mit
 ---
 
 <div align="center">