Fix in io.rakudoc: .e method is on IO::Path objects, not IO::Handle

[schultzdavid]

Very straightforward fix.

For instance:

"/".IO.WHAT  # (Path)
"/".IO.e     # True
$*IN.WHAT  # (Handle)
$*IN.e     # No such method 'e' for invocant of type 'IO::Handle'. Did you mean 't'?

The roasts also don't require anything different, as far as I can see.

[coke]

Thanks, good catch