Add License, CPAN and kwalitee badges to README

Author: mikkoi

README.md

@@ -1,3 +1,7 @@
+[![License: Artistic-2.0](https://img.shields.io/badge/License-Perl-0298c3.svg)](https://opensource.org/licenses/Artistic-2.0)
+[![CPAN Version](https://img.shields.io/cpan/v/WWW-Mechanize)](https://metacpan.org/dist/WWW-Mechanize)
+[![kwalitee](https://cpants.cpanauthors.org/dist/WWW-Mechanize.svg)](https://cpants.cpanauthors.org/dist/WWW-Mechanize)
+
 # NAME
 
 WWW::Mechanize - Handy web browsing in a Perl object