Add pipeline tag and library_name

This PR adds a relevant pipeline tag, ensuring people can find the model at https://huggingface.co/models?pipeline_tag=object-detection&sort=trending, as well as the library_name.

README.md

@@ -1,5 +1,7 @@
 ---
 license: mit
+library_name: pytorch
+pipeline_tag: object-detection
 tags:
 - source-free
 - object-detection
@@ -8,11 +10,8 @@ tags:
 - semi-supervised
 - computer-vision
 model-index:
-  - name: Grounded Teacher
-    results: []
-    paper:
-      - name: Context Aware Grounded Teacher for Source Free Object Detection
-        url: https://github.com/Tajamul21/Grounded_Teacher
+- name: Grounded Teacher
+  results: []
 ---
 
 # Grounded Teacher (GT)