This documentation is not finished. Please help and contribute documentation.
See Draft ShapeString for good documented Command. Gui Command gives an overview over commands. And see List of Commands for other commands.
Go to Help FreeCAD to contribute.
From Getting started:
When you start FreeCAD for the first time, you are presented with the start center:
The Start Center allows you to quickly jump to one of the most common workbenches, open one of the recent files, or see the latest news from the FreeCAD world. You can change the default workbench in the preferences.
ToDo