zCart Multi-Vendor eCommerce marketplace software will help you to start your own marketplace without breaking the bank. I bet you got a user manual with every technical product you bought, a script is not different than other technical products.
You can say this documentation is the user manual of the zCart platform. The articles in this documentation will help you with every step of using the application. You will know how a feature is working, how to configure the third-party API, how to manage your resources, and everything.