Add pipeline tag and additional tags to model card

This PR enhances the model card by adding the `pipeline_tag: image-to-3d`, ensuring that the model is discoverable through the relevant Hugging Face pipeline filters. It also adds specific tags like `3d`, `anime`, `hairstyle`, and `generation` for better categorization and searchability.

README.md

@@ -1,5 +1,11 @@
 ---
 license: gpl-3.0
+pipeline_tag: image-to-3d
+tags:
+- 3d
+- anime
+- hairstyle
+- generation
 ---
 
 # CHARM