Add ref for sphinx.
Add ref for sphinx.

varnish/Varnish-Cache,franciscovg/Varnish-Cache,feld/Varnish-Cache,feld/Varnish-Cache,franciscovg/Varnish-Cache,feld/Varnish-Cache,gquintard/Varnish-Cache,varnish/Varnish-Cache,varnish/Varnish-Cache,feld/Varnish-Cache,franciscovg/Varnish-Cache,gquintard/Varnish-Cache,feld/Varnish-Cache,varnish/Varnish-Cache,gquintard/Varnish-Cache,gquintard/Varnish-Cache,varnish/Varnish-Cache,franciscovg/Varnish-Cache,franciscovg/Varnish-Cache