Add pipeline tag

This PR ensures that the model is findable at https://huggingface.co/models?pipeline_tag=image-feature-extraction.

README.md

@@ -3,6 +3,7 @@ license: other
 license_name: msrla
 license_link: https://huggingface.co/microsoft/rad-dino/blob/main/LICENSE
 library_name: transformers
+pipeline_tag: image-feature-extraction
 ---
 
 # Model card for RAD-DINO
@@ -224,4 +225,4 @@ We used [SimpleITK](https://simpleitk.org/) and [Pydicom](https://pydicom.github
 
 ## Model card contact
 
-Fernando Pérez-García ([`[email protected]`](mailto:[email protected])).
+Fernando Pérez-García ([`[email protected]`](mailto:[email protected])).