diff --git a/README.md b/README.md
index bdd6759..da107e8 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ An image decode operator implementation with OpenCV.
 
 Load a image from path './dog.jpg'. 
 
- *Write the pipeline in simplified style*:
+ *Write the pipeline in simplified style:*
 
 ```python
 import towhee
@@ -73,7 +73,7 @@ An image decode operator takes an image path as input. It decodes the image back
 
 **Parameters:**
 
-​	***img***: *str*
+**img**: *str*
 
 ​	Image file path.