Update Parts.pod6

copy-paste-o
by context should be 'volume', probably text pasted from elsewhere.

Author: finanalyst

doc/Type/IO/Path/Parts.pod6

@@ -36,7 +36,7 @@ parts.
 Read-only. Returns the volume of the C<IO::Path::Parts> object.
 
 =begin code
-IO::Path::Parts.new('C:', '/some/dir', 'foo.txt').dirname.say;
+IO::Path::Parts.new('C:', '/some/dir', 'foo.txt').volume.say;
 # OUTPUT: «C:␤»
 =end code