update details collision task

README.md

@@ -49,7 +49,7 @@ Each `.txt` file contains a list of image and label paths for its respective cat
 
 ### Usage
 
-1. **Training**: Use `train_phantom.txt` to load training data for the phantom category.
+1. **Training**: Use `train_phantom.txt` to load training data for the phantom data source.
 2. **Validation**: Use `valid_animal.txt` and `valid_phantom.txt` for validating model performance on different data sources, specifically focusing on the 'animal' and 'phantom' data.
 
 This structure supports streamlined data loading and management for training, validating, and testing collision detection algorithms.