add icons for robotics skills also

[anishk85]

lets add icons for robotics skill also

like
-ros
-gazebo
-moveit
-pixhawk

and many more
I would love to raise pr under hacktoberfest do let me know

@rahuldkjain

[Neha-Sharmaaa]

Hi @anishk85 I would like to work on this issue. Could you please assign it to me?

[anishk85]

i think you might have some confusion i created this issue to work on.
thanks