Tutorial update

After the initial release I asked HanniballNOR to make a video about the game. Having watched his video, I realized that the tutorial for the game is a bit confusing, so I've worked on improving it.

The tutorial steps have been made a bit more granular and there is now less text and more images.

Additionally I improved clicking on selected object's portrait so the camera follows it instead of just centering on it at the time of the click.