Link/Name the location of Team administration

[theking2]

In order to administer Team folders it is important to first define the Teams (account grouping) first. The table header "Group or team" does not hint in this direction as they are called Account groups (not teams)

There are two options that will make administration easier:

1. Add a note "To create a group or team as administrator navigate to Nextcloud "Accounts" and configure the "Groups"
2. Link to /settings/users named Accounts management

Currently it is not clear from the UI nor from the Docs where the groups/teams are administered.