Wraps up, closes #2122
Wraps up, closes #2122

Encoding::Builtin is not specced, so it's better not to mention it. Same with Encoding::Encoder and Encoding::Decoder, although I do mention that, since we need to say what a function is returning.

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