Interface to the Budapest Metro Map.

Changes for 0.06 - 2023-12-07T20:25:15+01:00

• Fix image name in doc.
• Fix use lib '.' in Makefile.PL.
• Improve LICENSE AND COPYRIGHT section in doc.
• Improve SYNOPSIS section in doc.
• Move bugtracker to github.
• Rename example files to better names.
• Rewrite doc to use of =head2.
• Update Module::Install to 1.21 version.
• Update copyright years.