* Add m.add_hook test * Add @m.hook test * Add `hook` decorator for convenience * Update readme and examples * Update run_callback * Improve `add_hook` docstring expound on callback structure * Rm debug print * Improve docstring
* Add m.add_hook test * Add @m.hook test * Add `hook` decorator for convenience * Update readme and examples * Update run_callback * Improve `add_hook` docstring expound on callback structure * Rm debug print * Improve docstring