support jekyll 3.0

[muhasturk]

Run jekyll serve

Since v3.0, permalinks for pages in subfolders must be relative to the site source directory, not the parent directory. Check http://jekyllrb.com/docs/upgrading/ for more info.

jekyll 3.0.0

[cassioscabral]

I changed the permalink option to permalink: pretty and commented the relative_permalinks options and worked for me. I can't remember if I did any other steps, but with minor changes you can make it work. Cheers

[JayWan]

I met the same problem, hope to figure out.

[mjh2901]

I commented out relative_permalinks: true, fixed the build error, can't find anything it broke.