diff --git a/Readme.md b/Readme.md
index 4e1ada4..8d7a971 100644
--- a/Readme.md
+++ b/Readme.md
@@ -3,14 +3,14 @@
 ## 使用指南
 
 ```
-sub2sing-box convert --help
-Convert common proxy to json
+Convert common proxy to sing-box proxy
 
 Usage:
    convert [flags]
 
 Flags:
   -h, --help                   help for convert
+  -o, --output string          output file path
   -p, --proxy strings          common proxies
   -s, --subscription strings   subscription urls
   -t, --template string        path of template file