diff --git a/README.md b/README.md
index 1aff21f..fc4d475 100644
--- a/README.md
+++ b/README.md
@@ -66,6 +66,8 @@ $ rm -r ~/.sgi
 
 ### How to set account information
 
+Put the following format json
+
 ```json
 // ~/.sgi/account.json
 {
@@ -74,6 +76,16 @@ $ rm -r ~/.sgi
 }
 ```
 
+Or log-in with `login` subcommand,
+
+```sh
+$ sgi login
+Please provide your login information.
+
+ BaseURL:
+ ...
+```
+
 ## COMMANDS
 
 ### _member_