Fix cell output in interface-building tutorial
https://wiki.fysik.dtu.dk/ase/tutorials/manipulating_atoms.html#interface-building
cell[2, 2]
should be zero - not 6.14878037!
https://wiki.fysik.dtu.dk/ase/tutorials/manipulating_atoms.html#interface-building
cell[2, 2]
should be zero - not 6.14878037!