Fix install link

Author: DavidCapek

docs/60-simulations/30-FlightForge/30-example-sessions.md

@@ -10,7 +10,7 @@ The FlightForge simulator comes with a few example sessions that you can use to
 The example sessions are located in the `mrs_uav_unreal_simulation` ROS package.
 The invarient part of using the FlightForge simulator is to first start the simulator and then start the ROS nodes that control the drones.
 
-To start the simulator first start the binary from the archive you downloaded in the [installation](installation) section.:
+To start the simulator first start the binary from the archive you downloaded in the [installation](https://ctu-mrs.github.io/docs/simulations/FlightForge/installation) section.:
 
 ```bash
 ./flightforge.sh