def append_sprocket(name, options = {}, &block)
      create_sprocket(name, options, &block).tap do |sprocket|
        sprockets.push(sprocket).uniq!
      end
    end
def append_sprocket(name, options = {}, &block)
      create_sprocket(name, options, &block).tap do |sprocket|
        sprockets.push(sprocket).uniq!
      end
    end
Creates a Machined sprocket with the given +name+ and +options+
 and appends it to the #sprockets list. This will also create
 an accessor with the given name that references the created sprocket.

   machined.append_sprocket :updates, :url => '/news' do |updates|
     updates.append_path 'updates'
   end

   machined.updates            # => #<Machined::Sprocket...>
   machined.updates.config.url # => '/news'
   machined.updates.paths      # => [ '.../updates' ]