change PWP::Encoding to PWP::SingleEncoding
Comment on possibly specifying default binary files
Change generated readmes back to markdown for metacpan urls
Convert generated README from pod to markdown
v4.200

  - Change Pod::Weaver::Plugin '-Encoding' for the new core '-SingleEncoding'.
    Thanks, Sergey Romanov!
  - Change generated README in repo root back to markdown to get metacpan urls.