* Update docker-compose.env
* Update configuration.rst
example.com/paperless is not a subdomain, but a subpath. Also when hosting from a subdomain like paperless.example.com one does not have to change anything in the configuration, it just works, because paperless expects to be hosted at root, i.e. paperless.example.com
This however changes when paperless is not hosted at root anymore but for example at paperless.example.com/paperlessNgx
* Update docker-compose.env
* Apply suggestions from code review
Co-authored-by: shamoon <4887959+shamoon@users.noreply.github.com>
