diff --git a/README.md b/README.md
index 62ecc65..4302dc3 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@ The pipeline is used to extract the feature vector of detected faces in images.
 
 
 ## Code Example
-Load an image from path './test_face'. 
+Load an image from path './test_face.jpg'. 
 
  *Write the pipeline in simplified style*:
 
@@ -35,7 +35,7 @@ import towhee
 
 towhee.glob['path']('./test_face.jpgg') \
   .image_decode.cv2['path', 'img']() \
-  .face_embedding.deepface['img', 'vec']() \
+  .face_embedding.deepface['img', 'vec'](model_name = 'DeepFace') \
   .select['img','vec']() \
   .show()
 ```
@@ -90,4 +90,4 @@ A face embedding operator takes a face image as input. It extracts the embedding
 
 https://github.com/serengil/deepface
 
-You can refer to [Getting Started with Towhee](https://towhee.io/) for more details. If you have any questions, you can [submit an issue to the towhee repository](https://github.com/towhee-io/towhee/issues).
\ No newline at end of file
+You can refer to [Getting Started with Towhee](https://towhee.io/) for more details. If you have any questions, you can [submit an issue to the towhee repository](https://github.com/towhee-io/towhee/issues).
diff --git a/node_modules/.yarn-integrity b/node_modules/.yarn-integrity
deleted file mode 100644
index 0f19eb7..0000000
--- a/node_modules/.yarn-integrity
+++ /dev/null
@@ -1,10 +0,0 @@
-{
-  "systemParams": "darwin-x64-83",
-  "modulesFolders": [],
-  "flags": [],
-  "linkedModules": [],
-  "topLevelPatterns": [],
-  "lockfileEntries": {},
-  "files": [],
-  "artifacts": {}
-}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
deleted file mode 100644
index fb57ccd..0000000
--- a/yarn.lock
+++ /dev/null
@@ -1,4 +0,0 @@
-# THIS IS AN AUTOGENERATED FILE. DO NOT EDIT THIS FILE DIRECTLY.
-# yarn lockfile v1
-
-