Manual: move figures, fix some links

- A unique detector `name` to refer to the detector in the configuration.

- The `position` in the world frame. This is the position of the geometric center of the sensitive device (sensor) given in

  world coordinates as X, Y and Z s defined in [Section 4.5](./05_geometry_detectors.md#coordinate-systems) (note that any

  world coordinates as X, Y and Z s defined in [Section 4.5](./01_geometry.md#coordinate-systems) (note that any

  additional components like the chip and possible support layers are ignored when determining the geometric center).

- An `orientation_mode` that determines the way that the orientation is applied. This can be either `xyz`, `zyx` or `zxz`,

## Changing and accessing the geometry

The geometry is needed at a very early stage because it determines the number of detector module instantiations as explained

in [Section 4.4](./04_modules.md#module-instantiation). The procedure of finding and loading the appropriate detector models

is explained in more detail in the [next section](#detector-models).

in [Section 4.4](../04_framework/04_modules.md#module-instantiation). The procedure of finding and loading the appropriate

detector models is explained in more detail in the [next section](#detector-models).

The geometry is directly added from the detector configuration file described in

[Section 3.3](../03_getting_started/03_detector_configuration.md). The geometry manager parses this file on construction, and