updated the readme

README.md

@@ -4,9 +4,9 @@ Sick of exporting everytime again and again the secrets from vault? this is (hop
 ## USE at YOUR own RISK ! ! !
 
 ### Prerequiries 
-For this service you need to have the following tools installed:   
-`secret-tool` -> Some shells have it, some not. (just enter `secret-tool` and see if it works     
+For this service you need to have the following tools installed:    
 `vault` Info: [Vault CLI](https://www.vaultproject.io/docs/commands)   
+`secret-tool` -> if not installed, try `sudo apt install libsecret-tools`
 
 
 ### Prepare .bashrc / zshrc