Update docs on spatial coordinate system

(cherry picked from commit ce4f6a9)

Author: Erol444

docs/source/includes/spatial-coords.rst

@@ -1,8 +1,8 @@
 Spatial coordinate system
 ^^^^^^^^^^^^^^^^^^^^^^^^^
 
-OAK camera uses right-handed (Cartesian) coordinate system for all spatial coordiantes.
+OAK camera uses left-handed (Cartesian) coordinate system for all spatial coordiantes.
 
-.. image:: /_static/images/components/spatial-coordinates.png
+.. image:: 
 
-More details (image source) can be found `here <https://homepages.inf.ed.ac.uk/rbf/CVonline/LOCAL_COPIES/OWENS/LECT9/node2.html>`__.
+From the image you can see that on the frame to up the Y is positive, and on the frame to the right the X is positive.