Plotter.compute_screen_coordinates doc correction and idea

[baba-yaga]

Hi, Marco,
I believe in documentation
https://vedo.embl.es/docs/vedo/plotter.html#Plotter.compute_screen_coordinates
in the example, the line
xyscreen = plt.compute_screen_positions(elli)

should be

xyscreen = plt.compute_screen_coordinates(elli)

I would also suggest that the input could also be an Nx3 array of 3D points' coordinates or a list of 3D coordinates of points.

Thanks for your efforts!
Sergei