Some modifications for haskell-to-p6
Some modifications for haskell-to-p6

- { * } doesn't become { $_ }, it returns a Whatever
- Remove the explicit smartmatch
- Mention the defined-or operator

stmuk/doc,stmuk/doc,jonathanstowe/doc,dmaestro/doc,gfldex/doc,gfldex/doc,MasterDuke17/doc,gfldex/doc,gfldex/doc,tbrowder/doc,perl6/doc,jonathanstowe/doc,jonathanstowe/doc,antquinonez/doc,perl6/doc,dmaestro/doc,antquinonez/doc,dmaestro/doc,gfldex/doc,jonathanstowe/doc,stmuk/doc,MasterDuke17/doc,MasterDuke17/doc,stmuk/doc,jonathanstowe/doc,perl6/doc,stmuk/doc,perl6/doc,dmaestro/doc,MasterDuke17/doc,tbrowder/doc,antquinonez/doc,tbrowder/doc,perl6/doc,dmaestro/doc,tbrowder/doc,antquinonez/doc,antquinonez/doc