Processing PYX data or file and do XML normalization.

Changes for 0.05 - 2023-10-19T11:13:30+02:00

• Fix typo 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 file to better name.
• Rewrite doc to use =head2.
• Update Module::Install to 1.21 version.
• Update author github username.
• Update author name.
• Update copyright years.