fix(documentation): change description for password length requiremen…

…ts block (wintercms#23)

README.md

@@ -143,7 +143,7 @@ We can add any other additional fields here too, such as `phone`, `company`, etc
 
 ## Password length requirements
 
-By default, the User plugin requires a minimum password length of 8 characters for all users when registering or changing their password. You can change this length requirement by going to backend and navigating to System > Users > User Settings. Inside the Registration tab, a **Minimum password length** field is provided, allowing you to increase or decrease this limit to your preferred length.
+By default, the User plugin requires a minimum password length of 8 characters for all users when registering or changing their password. You can change this length requirement by going to config/config.php. Inside the file, change the value of the ***minPasswordLength*** parameter to your own.
 
 ## Error handling