efa-m documentation: Update BUGS AND LIMITATIONS

=head1 BUGS AND LIMITATIONS

B<efa-m> uses the VRR EFA service by default, which seems to contain the

greatest available set of information. However, some cities (e.g. Berlin

or parts of Hamburg) are incomplete. B<efa-m> is not yet able to choose the

appropriate EFA URL for these by itself, it needs to be done manually with

the B<-u>, B<--efa-url> option.

greatest available set of information. However, some cities (e.g. Berlin or

parts of Hamburg) are not supported there, and B<efa-m> is not yet able to

choose the appropriate EFA URL for these by itself. In these cases, you should

find an appropriate EFA service using the B<-D>/B<--discover> option and then

use B<-s> I<service> when making requests.

=head1 AUTHOR