Update prediction Results docs (#4139)

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

docs/reference/utils/callbacks/hub.md

@@ -3,42 +3,40 @@ description: Explore the detailed information on key Ultralytics callbacks such
 keywords: Ultralytics, callbacks, on_pretrain_routine_end, on_model_save, on_train_start, on_predict_start, hub, training
 ---
 
-## on_pretrain_routine_end
+# Reference for `ultralytics/utils/callbacks/hub.py`
+
+!!! note
+
+    Full source code for this file is available at [https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/hub.py](https://github.com/ultralytics/ultralytics/blob/main/ultralytics/utils/callbacks/hub.py).
+
 ---
-### ::: ultralytics.utils.callbacks.hub.on_pretrain_routine_end
+## ::: ultralytics.utils.callbacks.hub.on_pretrain_routine_end
 <br><br>
 
-## on_fit_epoch_end
 ---
-### ::: ultralytics.utils.callbacks.hub.on_fit_epoch_end
+## ::: ultralytics.utils.callbacks.hub.on_fit_epoch_end
 <br><br>
 
-## on_model_save
 ---
-### ::: ultralytics.utils.callbacks.hub.on_model_save
+## ::: ultralytics.utils.callbacks.hub.on_model_save
 <br><br>
 
-## on_train_end
 ---
-### ::: ultralytics.utils.callbacks.hub.on_train_end
+## ::: ultralytics.utils.callbacks.hub.on_train_end
 <br><br>
 
-## on_train_start
 ---
-### ::: ultralytics.utils.callbacks.hub.on_train_start
+## ::: ultralytics.utils.callbacks.hub.on_train_start
 <br><br>
 
-## on_val_start
 ---
-### ::: ultralytics.utils.callbacks.hub.on_val_start
+## ::: ultralytics.utils.callbacks.hub.on_val_start
 <br><br>
 
-## on_predict_start
 ---
-### ::: ultralytics.utils.callbacks.hub.on_predict_start
+## ::: ultralytics.utils.callbacks.hub.on_predict_start
 <br><br>
 
-## on_export_start
 ---
-### ::: ultralytics.utils.callbacks.hub.on_export_start
+## ::: ultralytics.utils.callbacks.hub.on_export_start
 <br><br>