fix(docs): Implement changes from review (#510)

Signed-off-by: Maximilian Rosin <maximilian.rosin@parson-europe.com>

Author: max-rosin

doc/architecture/reference_points_coordinate_systems.adoc

@@ -1,9 +1,6 @@
-= Reference points and coordinate systems
+= Coordinate systems and reference points
 
-With Open Simulation Interface, an object's position coordinates refer to the center of the object's bounding box.
-This reference point is not necessarily identical to the origin of the respective coordinate systems.
 OSI uses DIN ISO 8855:2013-11 for coordinate systems and transformations between coordinate systems.
-
 OSI uses three coordinate systems:
 
 World coordinate system::
@@ -15,12 +12,6 @@ Coordinate system for all quantities which are part of sensor data.
 The origin is the mounting position of the physical sensor or a virtual mounting position, depending on the technology.
 
 Object coordinate system::
-Coordinate system for local object coordinates, for example, vehicle coordinates.
-For vehicles, the origin is the middle of the rear axle projected onto the ground.
-Other objects may use different origins.
-
-The following image shows an example of the differents coordinate systems.
-It also shows that the reference point of the vehicle is located in the center of its bounding box whereas the origin of the vehicle coordinate system is the middle of rear axle projected onto the ground.
-In this example, the virtual mounting position coincides with the origin of the vehicle coordinate system.
-
-image::{imagedir}/osi_coordinate_systems.png[]
+Coordinate system for local object coordinates.
+The origin of the respective coordinate systems is not necessarily identical to the center of the object's bounding box.
+For example with vehicles, the origin is the middle of the rear axle projected onto the ground.