[io grant] Finish up IO::Path.dirname
[io grant] Finish up IO::Path.dirname

- Add links to volume/basename
- Include an example with IO::Path that has a volume

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