Rewording INITIAL_ADMIN_MODE documentation

docs/configuration.rst

@@ -162,13 +162,13 @@ To have the account created automatically, you just need to define a few environ
 - ``INITIAL_ADMIN_ACCOUNT``: the admin username: The first part of the e-mail address before the @.
 - ``INITIAL_ADMIN_DOMAIN``: the domain appendix: Most probably identical to the ``DOMAIN`` variable.
 - ``INITIAL_ADMIN_PW``: the admin password.
-- ``INITIAL_ADMIN_MODE``: one of the options below how the code should behave when it will try to create the admin user:
+- ``INITIAL_ADMIN_MODE``: use one of the options below for configuring how the admin account must be created:
   
-  - ``create``: (default) Will try to create user and will raise an exception if present.
-  - ``ifmissing``: if user exists, nothing happens, else it will be created.
-  - ``update``: user is created or, if it exists, its password gets updated.
+  - ``create``: (default) creates a new admin account and raises an exception when already exists.
+  - ``ifmissing``: creates a new admin account when the admin account does not exist.
+  - ``update``: creates a new admin account when it does not exist, or update the password of an existing admin account.
 
-You should set ``INITIAL_ADMIN_MODE`` also to either ``update`` or ``ifmissing``. Leaving it with the default value could cause errors when restarting the system.  
+Note: It is recommended to set ``INITIAL_ADMIN_MODE`` to either ``update`` or ``ifmissing``. Leaving it with the default value will cause an error when the system is restarted.
 
 An example: