ocean_waves.launch not in uuv_descriptions

[simchanu29]

On the page https://uuvsimulator.github.io/documentation/sim_scenarios.html, the quickstart command is roslaunch uuv_descriptions ocean_waves.launch or roslaunch uuv_descriptions empty_underwater_world.launch, but in uuv_simulator repository, these launchfiles are located in uuv_gazebo_worlds package.

Consequently I think the commands in the quickstart are wrong. It should be changed to : roslaunch uuv_gazebo_worlds ocean_waves.launch and roslaunch uuv_gazebo_worlds empty_underwater_world.launch