Update use-case mpm4cps.

pages/use_cases.md

@@ -7,9 +7,9 @@ One model was used to ensure a low speed of the robot when within a safety zone
 
 ![Screenshot of Gazebo](material/robo3d.png)
 
-![Recording of the simulated robot during the use case](material/moving-robot.mp4)
+[📽 Recording of the simulated robot during the use case](moving-robot.mp4)
 
-This paper was presented on October, 16h during the [MPM4CPS workshop](https://msdl.uantwerpen.be/conferences/MPM4CPS/2020/) within the [MODELS 2020 conference](https://conf.researchr.org/home/models-2020). For more information, see the [presented slides](material/mpm4cps-slides.pdf) or the [a recording of the session](https://youtu.be/Hgc1qFfmr44?t=1220).
+This paper was presented on October, 16h during the [MPM4CPS workshop](https://msdl.uantwerpen.be/conferences/MPM4CPS/2020/) within the [MODELS 2020 conference](https://conf.researchr.org/home/models-2020). For more information, see the [presented slides](mpm4cps-slides.pdf) or the [a recording of the session](https://youtu.be/Hgc1qFfmr44?t=1220).
 
 The repository with the used source code can be found at: <https://git-st.inf.tu-dresden.de/ceti/ros/mpm4cps2020>
 The usage is dockerized, so starting the application only involves the commands listed below.