diff --git a/ReadMe.md b/ReadMe.md
index f620f0f..394d507 100644
--- a/ReadMe.md
+++ b/ReadMe.md
@@ -3,7 +3,10 @@
 This script is run locally on your operation Workstation.
 These scripts are mainly destinated to rotate the SSH key, a set of scripts is for admin users, the other is for normal users.
 
-- create new key with name scheme     <<< to specify >>>
+- create new key with name scheme
+  - Name consits out of the server location (`awsN-REGION_server name_user name`)
+    - the `awsN-REGION_server name_` is the hostname in the `server_list.csv` file
+    - the `user name` is the username in the `server_list.csv` file
 - copy to server to
   - $ADMIN/.ssh (this usage is to be ended for admin user, only if such key already exist)
   - /etc/ssh/authorized_keys--master