[ESS] Julia library ref

[Vitalie Spinu]

It might have worked in the pasts or it's just a typo on the wiki.

`C-c C-d C-w` still works, and it's better anyways.

 Vitalie

 >>> Andrew Dabrowski on Mon, 20 Oct 2014 16:53:35 -0400 wrote:

 > In the ESS wiki page for Julia 
 > (https://github.com/emacs-ess/ESS/wiki/Julia<https://github.com/emacs-ess/ESS/wiki/Julia>) it says:

 >     To look up for a topic [sic] in julia standard library reference:
 >     |C-c C-d C-r|.

 > But when I try that I get "Sorry, not implemented for dialect Julia".

 > Am I doing something wrong or has that feature simply not been 
 > implemented yet?