Screenshot of Youbot robot added to README.md file

Author: MartinOtter

README.md

@@ -127,10 +127,15 @@ The following code shows how to execute some of these examples.
   include("$(Modia3D.path)/examples/dynamics/Simulate_Pendulum_explained.jl")
   include("$(Modia3D.path)/examples/dynamics/Simulate_DoublePendulumWithDampers.jl")
   include("$(Modia3D.path)/examples/collisions/Simulate_NewtonsCradle.jl")
+  include("$(Modia3D.path)/examples/collisions/Simulate_YouBot.jl")
   include("$(Modia3D.path)/examples/kinematics/Move_FourBar.jl")
   include("$(Modia3D.path)/examples/visual/Move_AllVisualObjects.jl")
 ```
 
+The next figure shows a screenshot of the animation of example `Simulate_YouBot.jl `:
+
+![PendulumPlot](docs/resources/images/youbot-robot.jpg)
+
 
 ## Run tests
 

docs/resources/images/youbot-robot.jpg

@@ -30,7 +30,7 @@ A more detailed overview of the available features is also given in the [Modia3D
 
 Papers and videos about Modia3D:
 
-- [1] *[Collision Handling with Variable-Step Integrators](resources/documentation/CollisionHandling_Neumayr_Otter_2017.pdf)* ([EOOLT 2017, December](http://www.eoolt.org/2017/))
+- [1] *[Collision Handling with Variable-Step Integrators](../resources/documentation/CollisionHandling_Neumayr_Otter_2017.pdf)* ([EOOLT 2017, December](http://www.eoolt.org/2017/))
 - [2] *[Component-Based 3D Modeling of Dynamic Systems](http://www.ep.liu.se/ecp/154/019/ecp18154019.pdf)* ([American Modelica Conference 2018, October](https://www.modelica.org/events/modelica2018Americas/index_html))
 - [3] *[Algorithms for Component-Based 3D Modeling](http://www.ep.liu.se/ecp/157/039/ecp19157039.pdf)* ([13th International Modelica Conference 2019, March](https://modelica.org/events/modelica2019))
 - [4] *Modia3D: Modeling and Simulation of 3D-Systems in Julia* ([JuliaCon 2019, July](https://juliacon.org/2019/), under review); talk recorded on [YouTube](https://www.youtube.com/watch?v=b3WfqXZRKpA)