Update readme

Author: Jaeyoung-Lim

README.md

@@ -14,7 +14,7 @@ The implementation includes a global planner based on a RRT* in the Dubins Airpl
 ## Paper and Video
 If you find this package useful in an academic context, please consider citing the paper
 
-- J. Lim, F. Achermann, R. Girod, N. Lawrance and R. Siegwart, "Safe Low-Altitude Navigation in Steep Terrain With Fixed-Wing Aerial Vehicles," in IEEE Robotics and Automation Letters, vol. 9, no. 5, pp. 4599-4606, May 2024, doi: 10.1109/LRA.2024.3368800.
+- J. Lim, F. Achermann, R. Girod, N. Lawrance and R. Siegwart, "Safe Low-Altitude Navigation in Steep Terrain With Fixed-Wing Aerial Vehicles," in IEEE Robotics and Automation Letters, vol. 9, no. 5, pp. 4599-4606, May 2024, doi: 10.1109/LRA.2024.3368800
 . [[paper](https://ieeexplore.ieee.org/abstract/document/10443502)] [[video](https://youtu.be/7C5SsRn_L5Q?si=cMNtX16F1aFNrV8_)]
 
 ```
@@ -29,6 +29,10 @@ If you find this package useful in an academic context, please consider citing t
   doi={10.1109/LRA.2024.3368800}}
 ```
 
+<p align="center">
+    <img src="https://github.com/user-attachments/assets/c3723ce4-83a6-44f0-b008-bdba7c189055" alt="fieldtests">
+</p>
+
 ## Setup
 
 ### Setting up the Build Environment using Docker