Sample Middleman Config.rb

activate :blog do |blog|
    blog.prefix = 'blog'
    blog.defaultextension = '.markdown'
    blog.sources = 'articles/{category}/{title}'
    blog.permalink ='{category}/{title}'
    blog.summary_separator = /(READMORE)/
    blog.layout = '/blog/bloglayout'
    blog.tagtemplate = 'tag.html'
    blog.calendartemplate = 'calendar.html'
    # Enable pagination
    blog.paginate = true
    blog.perpage = 10
    blog.pagelink = 'page/{num}.html'
    blog.custom_collections = {
        category: {
            link: '/categories/{category}.html',
            template: '/category.html'
        }
    }
end