A new render_markaby method for quickly outputting from inside a controller.
Cleaned up for general Ruby use, just attach a block to Markaby::Builder.new containing all your HTML calls.
A tip: you know how all calls to helpers are automatically output to the builder stream? Well, if you need the helper method’s output, just call it against the @helpers instance var.
p "Total is: #{@helpers.number_to_human_size @file_bytes}"