1. SA matching
Info from Mikołaj/Kamil:
Add information to SiteFactory description (both UG and DG), that Site Accesses defined in configuration always take precedence over those that users create in SF.
Therefore, if an administrator has defined a Site Access in a yaml file, and a user defines the same path for the site in SF, SiteAccess matching will not match the latter.

For this, I want to add a note in this paragraph:
https://doc.ibexa.co/projects/userguide/en/latest/site_organization/site_factory/#create-a-site

2. User/login policies can get updated when a Site is created:

https://github.com/ezsystems/ezplatform-site-factory/pull/99

In config/packages/ezplatform_site_factory.yaml file, developers can define a list Roles which will be updated when a Site is created in the Site Factory. For example:

```
ez_platform_site_factory:
enabled: true
update_roles: [Anonymous, Administrator]
```

For such Roles to be valid for an update, they must have a user/login policy defined with at least one limitation. If a Role does not have a user login/ policy, a new policy is not added to the Role. and an error is logged.

For this, I want to add a paragraph around here:
https://doc.ibexa.co/en/latest/guide/site_factory/#configure-user-group-skeletons