update the result image.

README.md

@@ -20,13 +20,13 @@ An image crop operator implementation with OpenCV.
 
 ## Code Example
 
-Crop the face from 'einstein.jpg'.
+Crop the face from 'avengers.jpg'.
 
 ```python
 
 import towhee
 
-bboxes = towhee.glob['path']('einstein.jpg') \
+towhee.glob['path']('./avengers.jpg') \
   .image_decode['path', 'img']() \
   .face_detection.retinaface['img', ('box','score')]()\
   .image_crop[('img', 'box'), 'crop'](clamp = True)\