Use python livereload to create livereload server [tip-0000]

I also use the following approach

from livereload import Server, shell
server = Server()
server.watch('content/**/*.scrbl', shell('raco tr build'))
server.serve(root='_build', port=8000)

Code is very simple (because the work of livereload module), we simply watch scribble files in content/ directory, and serve at port 8000.