Fixed site build and demo link

[vinkaga]

Site build is barfing due to empty docs, commented out.
Demo link needs code root to be accessible over the web.

[mcasimir]

Thank you for that!

To make it work you had to run grunt build before, that would copy demo folder to site/output. But now that you pointed me out the right direction I serve 'demo' and 'dist' from "." and everything else from "site/output".

I had to copy and paste code cause I was doing many other changes to the same file.