add useful airsim settings

src/02_product-documentation/04_implementation/04_unreal_setup.tex

@@ -120,3 +120,12 @@
             
             When the binary configuration is selected, use Package Project.
             This process takes a while, but from the performance perspective is definitively worth it.
+
+    \subsection{Useful Airsim settings}
+        Airsim creates a settings.json in Documents/AirSim.
+        Here is a brief overview of the most useful settings used.
+
+        \begin{itemize}
+            \item \textbf{SimMode}: Can be either \textbf{Car} or \textbf{Multirotor}. The drone needs Multirotor.
+            \item \textbf{ClockSpeed}: Is used to speed up the internal clock of Airsim. Be aware, that increasing the number messes with the physics. Therefore, I have selected 5 as an acceptable trade-off of physics and training speed.
+        \end{itemize}