If you are interested in formally documenting your business processes using a very widely used standard notation, then this link is for you.
This would help if you were planning to expand by franchising, for example or are doing study related to your business.
But if you haven’t got time to deal with all that stuff or find it uncomfortable, don’t worry. All you really need to have a clearer view of your process is to draw a box when someone does something and a line between boxes where there is a connection e.g. information flow.