diff --git a/README.md b/README.md
index b21367b..dbef34b 100644
--- a/README.md
+++ b/README.md
@@ -35,11 +35,11 @@ Optional arguments:
 
 eg.
 
-OpenixCard -u  <img>    - Unpack Allwinner image to target
-OpenixCard -uc <img>    - Unpack Allwinner image to target and generate Allwinner image partition table cfg
-OpenixCard -d  <img>    - Convert Allwinner image to regular image
-OpenixCard -p  <dir>    - pack dumped Allwinner image to regular image from folder
-OpenixCard -s  <img>    - Get the accurate size of Allwinner image
+OpenixCard -u  <img>   - Unpack Allwinner image to target
+OpenixCard -uc <img>   - Unpack Allwinner image to target and generate Allwinner image partition table cfg
+OpenixCard -d  <img>   - Convert Allwinner image to regular image
+OpenixCard -p  <dir>   - pack dumped Allwinner image to regular image from folder
+OpenixCard -s  <img>   - Get the accurate size of Allwinner image
 ```
 
 ## Download