Add change password to users and groups

source/3/3.2/3.2.15/users_and_groups.rst

@@ -11,6 +11,8 @@ Useage
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 To create a new useage create a new user enter your password to make sure it is really you enter the users name and username then enter the new password twice by hand. To change the users permission click account type and enter your password and select desktop user to not give permission to change the system or admin to change system settings.  
 
+To change your users password you can press on the button with a key and enter the new password and enter new password and then use a password to authenticate that you have permission to do this. 
+
 Screenshot
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 .. image:: users_and_groups.png