Update harmonic/ros2_spawn_model.md

Co-authored-by: Alejandro Hernández Cordero <[email protected]>
Signed-off-by: Amronos <[email protected]>

harmonic/ros2_spawn_model.md

@@ -15,7 +15,7 @@ existing simulation. Here's an example:
 ros2 launch ros_gz_sim ros_gz_spawn_model.launch.py world:=empty file:=$(ros2 pkg prefix --share ros_gz_sim_demos)/models/vehicle/model.sdf entity_name:=my_vehicle x:=5.0 y:=5.0 z:=0.5
 ```
 
-Check [this block](https://github.com/gazebosim/ros_gz/blob/66c7a4a5b41bc2466f2334e216f0434a10303fdc/ros_gz_sim/launch/ros_gz_spawn_model.launch.py#L26-L45)
+Check [this block](https://github.com/gazebosim/ros_gz/blob/ros2/ros_gz_sim/launch/ros_gz_spawn_model.launch.py#L26-L45)
 from the source code to know all the different parameters accepted by this
 launch file.