Update

Signed-off-by: shiyu22 <shiyu.chen@zilliz.com>

README.md

@@ -47,9 +47,7 @@ You can get the required python package by [requirements.txt](./requirements.txt
 
 ## How it works
 
-The `towhee/resnet-image-embedding` Operator implements the function of image embedding, which can add to the pipeline. For example, it's the key Operator named embedding_model within [image-embedding-resnet50](https://hub.towhee.io/towhee/image-embedding-resnet50) pipeline and [image-embedding-resnet101](https://hub.towhee.io/towhee/image-embedding-resnet101), and it is the red box in the picture below.
-
-![img](./readme_res/operator.png)
+The `towhee/resnet-image-embedding` Operator implements the function of image embedding, which can add to the pipeline. For example, it's the key Operator named embedding_model within [image-embedding-resnet50](https://hub.towhee.io/towhee/image-embedding-resnet50) pipeline and [image-embedding-resnet101](https://hub.towhee.io/towhee/image-embedding-resnet101).
 
 ## Reference