Standard to XYZ documentation needs a minor fix

[michaelkmpoon]

Describe the bug
I think orbitize.basis.XYZ.standard_to_xyz has some incorrect documentation. To convert from standard orbital elements to XYZ for more than 1 set of parameters, the documentation says that the first dimension must be the number of orbital parameter sets.

To Reproduce
Here is a simple example that shows the error, as well as the how instead I got it to work (by transposing the array). Instead, it should be the second dimension that is the number of orbital parameter sets.

This is with orbitize! Version 2.2.2.

[sblunt]

Addressed in #363.