[Python-ideas] Add citation() to site.py

[Ethan Furman]

On 03/17/2016 01:32 PM, Nathaniel Smith wrote:

 > One way to think about it is that providing a preferred citation is
 > useful for folks who want to cite, and folks who don't want to cite
 > will ignore it.

I would also think that citing the software increases the ease of 
duplicating the results.

--
~Ethan~