The so-called Perl6 documentation is a very sore point. Recently my boss tried to look at Perl 6, but all of the human-readable documentation he could find as an outsider assumed that he was already fluent in Perl 5. This is quite bad, as it prevents people who do not know Perl 5 from ever learning Perl 6, unless they take the detour through Perl 5.
I don't know what to make of the linked http://doc.perl6.org/ - it feels to me like some automatically generated documentation that is not intended for human consumption. Maybe it is a good reference if you're looking for a concise description of how an operator works, but it surely can't be intended as the starting point for getting in touch with Perl 6.