Need a beautifully drafted documentation on how to use our company iOS App.

We have an iOS which is complete. What I want from you guys is simply draft a document on how to use the app and about its benefits and how could it be useful to you. There is not enough functions. It's a pretty simple app with only one feature, that is to book services from the app itself. I'll be sharing with you the images of each app screen so that you know what is happening in that particular screen, which will make it easier for you to write. P.S. -- > Need this done in 12 hours. Only who think can complete the task in time bid. Time is priority.