bugs fixed

Author: jmplaza

_pages/activities/competitions/2026.md

@@ -31,9 +31,9 @@ The **Unibotics Robot Programming Challenge** aims at engineering students, grad
 
 ## The April 2026 challenge: a Formula1 car should follow a red line using visual control
 
-The proposed challenge for this April 2026 edition is the [FollowLine exercise of RoboticsAcademy](https://jderobot.github.io/RoboticsAcademy/exercises/AutonomousCars/follow_line/). The participants have to program a Formula1 car to follow the red line drawn in the floor along several race circuits. The car is endowed with a front camera, a steering wheel (W) and an accelerator pedal (V). More information about the robot's API in the (RoboticsAcadamy webpage for that exercise](https://jderobot.github.io/RoboticsAcademy/exercises/AutonomousCars/follow_line/). You can use both the available SimpleAPI or directly the ROS topics for camera images and robot control.
+The proposed challenge for this April 2026 edition is the [FollowLine exercise of RoboticsAcademy](https://jderobot.github.io/RoboticsAcademy/exercises/AutonomousCars/follow_line/). The participants have to program a Formula1 car to follow the red line drawn in the floor along several race circuits. The car is endowed with a front camera, a steering wheel (W) and an accelerator pedal (V). More information about the robot's API in the [RoboticsAcadamy webpage for that exercise](https://jderobot.github.io/RoboticsAcademy/exercises/AutonomousCars/follow_line/). You can use both the available SimpleAPI or directly the ROS topics for camera images and robot control.
 
-<img src="/assets/images/activities/competitions/2026/formula1-car" width="80%">
+<img src="/assets/images/activities/competitions/2026/formula1-car.png" width="80%">
 
 There are two types of Formula1 cars in this exercise: holonomic ones and Ackermann ones. You can use the holonomic car at the initial stages of your preparation, as their dynamics is stable and smooth. In your final solution, the **Ackermann car** should be used. In addition there are several circuits available. You can use SimpleCircuit, Nurburgring, etc... In your final solution the **Montmeló circuit** should be used, but it also should work in all other circuits with Ackerman car, as your solution should be general.